WO2019066846A1 - Apparatus, system and method of communicating a unified wakeup signal - Google Patents

Apparatus, system and method of communicating a unified wakeup signal Download PDF

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Publication number
WO2019066846A1
WO2019066846A1 PCT/US2017/053939 US2017053939W WO2019066846A1 WO 2019066846 A1 WO2019066846 A1 WO 2019066846A1 US 2017053939 W US2017053939 W US 2017053939W WO 2019066846 A1 WO2019066846 A1 WO 2019066846A1
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WO
WIPO (PCT)
Prior art keywords
radio
wireless communication
communication device
ook
uwus
Prior art date
Application number
PCT/US2017/053939
Other languages
French (fr)
Inventor
Minyoung Park
Vallabhajosyula S. Somayazulu
Thomas J. Kenney
Shahrnaz Azizi
Po-Kai Huang
Original Assignee
Intel Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Intel Corporation filed Critical Intel Corporation
Priority to PCT/US2017/053939 priority Critical patent/WO2019066846A1/en
Publication of WO2019066846A1 publication Critical patent/WO2019066846A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2603—Signal structure ensuring backward compatibility with legacy system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • FIG. 3 is a schematic illustration of a scheme of waking up a device including multiple radios, in accordance with some demonstrative embodiments.
  • circuitry may refer to, be part of, or include, an Application Specific Integrated Circuit (ASIC), an integrated circuit, an electronic circuit, a processor (shared, dedicated, or group), and/or memory (shared, dedicated, or group), that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.
  • ASIC Application Specific Integrated Circuit
  • the circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • circuitry may include logic, at least partially operable in hardware.
  • logic may be embedded in volatile memory and/or non- volatile memory, including random access memory, read only memory, programmable memory, magnetic memory, flash memory, persistent memory, and the like.
  • Logic may be executed by one or more processors using memory, e.g., registers, stuck, buffers, and/or the like, coupled to the one or more processors, e.g., as necessary to execute the logic.
  • radios 114 and/or 144 may include one or more wireless transmitters (Tx) including circuitry and/or logic to transmit wireless communication signals, RF signals, frames, blocks, transmission streams, packets, messages, data items, and/or data.
  • Tx wireless transmitters
  • radio 114 may include at least one transmitter 118
  • radio 144 may include at least one transmitter 148.
  • device 140 may include a single antenna 147. In another example, device 140 may include two or more antennas 147.
  • one or more elements of radio 144 may be powered on and/or may be woken up, for example, only when device 140 has data to transmit, and/or only when device 140 has data to receive. According to this example, one or more elements of radio 144 may be powered off and/or switched to the sleep mode, for example, for the rest of the time.
  • device 102 and/or device 140 may be configured to communicate the wakeup packet, for example, in compliance with one or more existing wireless communication standards and/or protocols ("legacy standards"), for example, in compliance with one or more IEEE 802.11 standards, BT standards, DSSS standards, and the like.
  • legacy standards existing wireless communication standards and/or protocols
  • IEEE 802.11 standards for example, in compliance with one or more IEEE 802.11 standards, BT standards, DSSS standards, and the like.
  • a device e.g., as a Smartwatch, including multiple radios, e.g., a BT radio, a DSSS radio and/or an OFDM radio
  • multiple radios e.g., a BT radio, a DSSS radio and/or an OFDM radio
  • LP- WURs e.g., a BT LP-WUR, a DSSS LP-WUR, and/or an OFDM LP-WUR
  • it may not be advantageous to define a dedicated wakeup signal for each technology e.g., the Wi-Fi technology, the BT technology, and/or the DSSS technology.
  • devices 102 and/140 may be configured to utilize a unified wake-up signal (uWUS), which may be generated by heterogeneous radios, e.g., a BT radio, a DSSS radio, an OFDM radio, and/or any other radio, e.g., as described below.
  • uWUS unified wake-up signal
  • device 302 may utilize a unified wakeup signal, e.g., uWUS 315, for example, instead of three different types of wakeup signals, e.g., Wi-Fi wakeup signal 215 (Fig. 2), BT wakeup signal 217 (Fig. 2), and/or DSSS wakeup signal 219 (Fig. 2).
  • a unified wakeup signal e.g., uWUS 315
  • three different types of wakeup signals e.g., Wi-Fi wakeup signal 215 (Fig. 2), BT wakeup signal 217 (Fig. 2), and/or DSSS wakeup signal 219 (Fig. 2).
  • the radio type field may be configured to identify a radio type of a radio to be woken up by a uWUS, e.g., uWUS 315 (Fig. 3)., e.g., as described below.
  • a uWUS e.g., uWUS 315 (Fig. 3).
  • the radio type field may identify a BT radio, a DSSS radio, or an OFDM radio.
  • the OOK transmit pulse may be based on the type of the radio of device 102, e.g., as described below.
  • radio 114 may include an OFDM radio, e.g., as described below.
  • the OOK transmit pulse may include an OFDM signal over a plurality of OFDM tones of an OFDM symbol, for example, when radio 114 includes the OFDM radio, e.g., as described below.
  • the address field may include the address of a radio to be woken up, e.g., as described above.
  • Fig. 10 schematically illustrates a product of manufacture 1000, in accordance with some demonstrative embodiments.
  • Product 1000 may include one or more tangible computer-readable (“machine readable”) non- transitory storage media 1002, which may include computer-executable instructions, e.g., implemented by logic 1004, operable to, when executed by at least one processor, e.g., computer processor, enable the at least one processor to implement one or more operations at device 102 (Fig. 1), device 140 (Fig. 1), radio 114 (Fig. 1), radio 144 (Fig. 1), wakeup receiver 150 (Fig. 1), transmitter 118 (Fig. 1), transmitter 148 (Fig. 1), receiver 116 (Fig. 1), receiver 146 (Fig.
  • Example 30 includes the subject matter of any one of Examples 17-29, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
  • Example 31 includes a method to be performed at a first wireless communication device, the method comprising generating a wakeup packet comprising at least a radio type field and an address field, the radio type field to identify a radio type of a radio of a second wireless communication device to be woken up, the address field comprising an address of the radio of the second wireless communication device, the radio type field to identify an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio; and transmitting by a radio of the first wireless communication device a Unified Wakeup Signal (uWUS) by modulating payload values of the wakeup packet according to a unified On-Off keying (OOK) modulation scheme comprising modulating a payload value by selecting,
  • OFDM Orthogon
  • Example 58 includes the subject matter of any one of Examples 45-57, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
  • MAC Media Access Control
  • Example 120 includes the subject matter of any one of Examples 111-119, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration.

Abstract

Some demonstrative embodiments may include an apparatus, system and/or method of communicating a unified wakeup signal. For example, a first wireless communication device may be configured to generate a wakeup packet including at least a radio type field and an address field, the radio type field to identify a radio type of a radio of a second wireless communication device to be woken up, the address field including an address of the radio of the second wireless device to be woken up; and to transmit by a radio of the first wireless communication device a Unified Wakeup Signal (uWUS) by modulating payload values of the wakeup packet according to a unified On-Off keying (OOK) modulation scheme.

Description

APPARATUS, SYSTEM AND METHOD OF COMMUNICATING A UNIFIED
WAKEUP SIGNAL
TECHNICAL FIELD [001] Embodiments described herein generally relate to communicating a unified wakeup signal.
BACKGROUND
[002] Some computing devices, for example, small computing devices, such as, for example, wearable devices and/or sensors, are constrained by a small battery capacity.
[003] However, such devices may be required to support wireless communication technologies such as, for example, Wi-Fi, and/or Bluetooth (BT), for example, to connect to other computing devices, e.g., a Smartphone, for example, to exchange data. [004] Exchanging data using the wireless communication technologies may consume power of the battery, and it may be beneficial, or even critical, to minimize energy consumption of one or more communication blocks in such computing devices.
BRIEF DESCRIPTION OF THE DRAWINGS
[005] For simplicity and clarity of illustration, elements shown in the figures have not necessarily been drawn to scale. For example, the dimensions of some of the elements may be exaggerated relative to other elements for clarity of presentation. Furthermore, reference numerals may be repeated among the figures to indicate corresponding or analogous elements. The figures are listed below.
[006] Fig. 1 is a schematic block diagram illustration of a system, in accordance with some demonstrative embodiments.
[007] Fig. 2 is a schematic illustration of a scheme of waking up a device including multiple radios, to demonstrate a technical problem, which may be solved in accordance with some demonstrative embodiment.
[008] Fig. 3 is a schematic illustration of a scheme of waking up a device including multiple radios, in accordance with some demonstrative embodiments.
[009] Fig. 4 is a schematic illustration of a unified On-Off keying (OOK) modulation scheme over a Direct- Sequence Spread Spectrum (DSSS) transmit signal, in accordance with some demonstrative embodiments.
[0010] Fig. 5 is a schematic illustration of a format of a unified wakeup signal (uWUS), in accordance with some demonstrative embodiments.
[0011] Fig. 6 is a schematic illustration of a first modulated uWUS, a second modulated uWUS, and a third modulated uWUS, in accordance with some demonstrative embodiments.
[0012] Fig. 7 is a schematic illustration of a bandwidth of a uWUS, in accordance with some demonstrative embodiments.
[0013] Fig. 8 is a schematic flow-chart illustration of a method of communicating a unified wakeup signal, in accordance with some demonstrative embodiments.
[0014] Fig. 9 is a schematic flow-chart illustration of a method of communicating a unified wakeup signal, in accordance with some demonstrative embodiments.
[0015] Fig. 10 is a schematic illustration of a product of manufacture, in accordance with some demonstrative embodiments. DETAILED DESCRIPTION
[0016] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of some embodiments. However, it will be understood by persons of ordinary skill in the art that some embodiments may be practiced without these specific details. In other instances, well-known methods, procedures, components, units and/or circuits have not been described in detail so as not to obscure the discussion.
[0017] Discussions herein utilizing terms such as, for example, "processing", "computing", "calculating", "determining", "establishing", "analyzing", "checking", or the like, may refer to operation(s) and/or process(es) of a computer, a computing platform, a computing system, or other electronic computing device, that manipulate and/or transform data represented as physical (e.g., electronic) quantities within the computer' s registers and/or memories into other data similarly represented as physical quantities within the computer's registers and/or memories or other information storage medium that may store instructions to perform operations and/or processes.
[0018] The terms "plurality" and "a plurality", as used herein, include, for example, "multiple" or "two or more". For example, "a plurality of items" includes two or more items.
[0019] References to "one embodiment", "an embodiment", "demonstrative embodiment", "various embodiments" etc., indicate that the embodiment(s) so described may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Further, repeated use of the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may. [0020] As used herein, unless otherwise specified the use of the ordinal adjectives "first", "second", "third" etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner. [0021] Some embodiments may be used in conjunction with various devices and systems, for example, a User Equipment (UE), a Mobile Device (MD), a wireless station (STA), a Personal Computer (PC), a desktop computer, a mobile computer, a laptop computer, a notebook computer, a tablet computer, a server computer, a handheld computer, a handheld device, an Internet of Things (IoT) device, a sensor device, a wearable device, a Personal Digital Assistant (PDA) device, a handheld PDA device, an on-board device, an off-board device, a hybrid device, a vehicular device, a non-vehicular device, a mobile or portable device, a consumer device, a non-mobile or non-portable device, a wireless communication station, a wireless communication device, a wireless Access Point (AP), a wired or wireless router, a wired or wireless modem, a video device, an audio device, an audio-video (A/V) device, a wired or wireless network, a wireless area network, a Wireless Video Area Network (WVAN), a Local Area Network (LAN), a Wireless LAN (WLAN), a Personal Area Network (PAN), a Wireless PAN (WPAN), and the like.
[0022] Some embodiments may be used in conjunction with devices and/or networks operating in accordance with existing IEEE 802.11 standards (including IEEE 802.11-2016 {IEEE 802.11-2016, IEEE Standard for Information technology- Telecommunications and information exchange between systems Local and metropolitan area networks-Specific requirements, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, December 7, 2016); IEEE 802.1 lax (IEEE 802.1 lax, High Efficiency WLAN (HEW)); IEEE802.11-ay (P802.11ay Standard for Information Technology--Telecommunications and Information Exchange Between Systems Local and Metropolitan Area Networks- Specific Requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications— Amendment: Enhanced Throughput for Operation in License-Exempt Bands Above 45 GHz)) and/or future versions and/or derivatives thereof) and/or future versions and/or derivatives thereof, devices and/or networks operating in accordance with existing Wireless-Gigabit-Alliance (WGA) specifications (including Wireless Gigabit Alliance, Inc WiGig MAC and PHY Specification Version 1.1, April 2011, Final specification) and/or future versions and/or derivatives thereof, devices and/or networks operating in accordance with existing Wireless Fidelity (WiFi) Alliance (WFA) Peer-to-Peer (P2P) specifications (including WiFi P2P technical specification, version 1.5, August 4, 2014) and/or future versions and/or derivatives thereof, devices and/or networks operating in accordance with existing cellular specifications and/or protocols, e.g., 3rd Generation Partnership Project (3GPP), 3GPP Long Term Evolution (LTE) and/or future versions and/or derivatives thereof, devices and/or networks operating in accordance with existing Bluetooth (BT) specifications and/or protocols and/or future versions and/or derivatives thereof, units and/or devices which are part of the above networks, and the like. [0023] Some embodiments may be used in conjunction with one way and/or two- way radio communication systems, cellular radio-telephone communication systems, a mobile phone, a cellular telephone, a wireless telephone, a Personal Communication Systems (PCS) device, a PDA device which incorporates a wireless communication device, a mobile or portable Global Positioning System (GPS) device, a device which incorporates a GPS receiver or transceiver or chip, a device which incorporates an RFID element or chip, a Multiple Input Multiple Output (MIMO) transceiver or device, a Single Input Multiple Output (SIMO) transceiver or device, a Multiple Input Single Output (MISO) transceiver or device, a device having one or more internal antennas and/or external antennas, Digital Video Broadcast (DVB) devices or systems, multi-standard radio devices or systems, a wired or wireless handheld device, e.g., a Smartphone, a Wireless Application Protocol (WAP) device, or the like.
[0024] Some embodiments may be used in conjunction with one or more types of wireless communication signals and/or systems, for example, Radio Frequency (RF), Infra Red (IR), Frequency-Division Multiplexing (FDM), Orthogonal FDM (OFDM), Orthogonal Frequency-Division Multiple Access (OFDMA), FDM Time-Division Multiplexing (TDM), Time-Division Multiple Access (TDM A), Multi-User MIMO (MU-MIMO), Spatial Division Multiple Access (SDMA), Extended TDMA (E- TDMA), General Packet Radio Service (GPRS), extended GPRS, Code-Division Multiple Access (CDMA), Wideband CDMA (WCDMA), CDMA 2000, single- carrier CDMA, multi-carrier CDMA, Multi-Carrier Modulation (MDM), Discrete Multi-Tone (DMT), Bluetooth®, Global Positioning System (GPS), Wi-Fi, Wi-Max, ZigBee™, Ultra- Wideband (UWB), Global System for Mobile communication (GSM), 2G, 2.5G, 3G, 3.5G, 4G, Fifth Generation (5G), or Sixth Generation (6G) mobile networks, 3GPP, Long Term Evolution (LTE), LTE advanced, Enhanced Data rates for GSM Evolution (EDGE), or the like. Other embodiments may be used in various other devices, systems and/or networks. [0025] The term "wireless device", as used herein, includes, for example, a device capable of wireless communication, a communication device capable of wireless communication, a communication station capable of wireless communication, a portable or non-portable device capable of wireless communication, or the like. In some demonstrative embodiments, a wireless device may be or may include a peripheral that is integrated with a computer, or a peripheral that is attached to a computer. In some demonstrative embodiments, the term "wireless device" may optionally include a wireless service.
[0026] The term "communicating" as used herein with respect to a communication signal includes transmitting the communication signal and/or receiving the communication signal. For example, a communication unit, which is capable of communicating a communication signal, may include a transmitter to transmit the communication signal to at least one other communication unit, and/or a communication receiver to receive the communication signal from at least one other communication unit. The verb communicating may be used to refer to the action of transmitting or the action of receiving. In one example, the phrase "communicating a signal" may refer to the action of transmitting the signal by a first device, and may not necessarily include the action of receiving the signal by a second device. In another example, the phrase "communicating a signal" may refer to the action of receiving the signal by a first device, and may not necessarily include the action of transmitting the signal by a second device.
[0027] Some demonstrative embodiments may be used in conjunction with a WLAN, e.g., a WiFi network. Other embodiments may be used in conjunction with any other suitable wireless communication network, for example, a wireless area network, a "piconet", a WPAN, a WVAN and the like.
[0028] As used herein, the term "circuitry" may refer to, be part of, or include, an Application Specific Integrated Circuit (ASIC), an integrated circuit, an electronic circuit, a processor (shared, dedicated, or group), and/or memory (shared, dedicated, or group), that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality. In some embodiments, the circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, circuitry may include logic, at least partially operable in hardware.
[0029] The term "logic" may refer, for example, to computing logic embedded in circuitry of a computing apparatus and/or computing logic stored in a memory of a computing apparatus. For example, the logic may be accessible by a processor of the computing apparatus to execute the computing logic to perform computing functions and/or operations. In one example, logic may be embedded in various types of memory and/or firmware, e.g., silicon blocks of various chips and/or processors. Logic may be included in, and/or implemented as part of, various circuitry, e.g. radio circuitry, receiver circuitry, control circuitry, transmitter circuitry, transceiver circuitry, processor circuitry, and/or the like. In one example, logic may be embedded in volatile memory and/or non- volatile memory, including random access memory, read only memory, programmable memory, magnetic memory, flash memory, persistent memory, and the like. Logic may be executed by one or more processors using memory, e.g., registers, stuck, buffers, and/or the like, coupled to the one or more processors, e.g., as necessary to execute the logic.
[0030] The term "antenna", as used herein, may include any suitable configuration, structure and/or arrangement of one or more antenna elements, components, units, assemblies and/or arrays. In some embodiments, the antenna may implement transmit and receive functionalities using separate transmit and receive antenna elements. In some embodiments, the antenna may implement transmit and receive functionalities using common and/or integrated transmit/receive elements. The antenna may include, for example, a phased array antenna, a single element antenna, a set of switched beam antennas, and/or the like. [0031] Reference is made to Fig. 1, which schematically illustrates a system 100, in accordance with some demonstrative embodiments.
[0032] As shown in Fig. 1, in some demonstrative embodiments, system 100 may include one or more wireless communication devices. For example, system 100 may include a first wireless communication device 102, and/or a second wireless communication device 140.
[0033] In some demonstrative embodiments, device 102 and/or device 140 may include a mobile device or a non-mobile, e.g., a static, device. For example, device 102 and/or device 140 may include, for example, a UE, an MD, a STA, an AP, a PC, a desktop computer, a mobile computer, a laptop computer, an Ultrabook™ computer, a notebook computer, a tablet computer, a server computer, a handheld computer, an Internet of Things (IoT) device, sensor device, a wearable device, a BT device, a handheld device, a PDA device, a handheld PDA device, an on-board device, an off- board device, a hybrid device (e.g., combining cellular phone functionalities with PDA device functionalities), a consumer device, a vehicular device, a non-vehicular device, a mobile or portable device, a non-mobile or non-portable device, a mobile phone, a cellular telephone, a PCS device, a PDA device which incorporates a wireless communication device, a mobile or portable GPS device, a DVB device, a relatively small computing device, a non-desktop computer, a "Carry Small Live Large" (CSLL) device, an Ultra Mobile Device (UMD), an Ultra Mobile PC (UMPC), a Mobile Internet Device (MID), an "Origami" device or computing device, a device that supports Dynamically Composable Computing (DCC), a context-aware device, a video device, an audio device, an A/V device, a Set-Top-Box (STB), a Blu-ray disc (BD) player, a BD recorder, a Digital Video Disc (DVD) player, a High Definition (HD) DVD player, a DVD recorder, a HD DVD recorder, a Personal Video Recorder (PVR), a broadcast HD receiver, a video source, an audio source, a video sink, an audio sink, a stereo tuner, a broadcast radio receiver, a flat panel display, a Personal Media Player (PMP), a digital video camera (DVC), a digital audio player, a speaker, an audio receiver, an audio amplifier, a gaming device, a data source, a data sink, a Digital Still camera (DSC), a media player, a Smartphone, a television, a music player, or the like.
[0034] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, and/or perform the functionality of one or more STAs. For example, device 102 may include at least one STA, and/or device 140 may include at least one STA.
[0035] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, and/or perform the functionality of one or more WLAN STAs. [0036] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, and/or perform the functionality of one or more Wi-Fi STAs. [0037] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, and/or perform the functionality of one or more BT devices.
[0038] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, and/or perform the functionality of one or more Neighbor Awareness Networking (NAN) STAs.
[0039] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, and/or perform the functionality of one or more location measurement STAs.
[0040] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, and/or perform the functionality of any other devices and/or STAs.
[0041] In some demonstrative embodiments, device 102 may include, for example, one or more of a processor 191, an input unit 192, an output unit 193, a memory unit 194, and/or a storage unit 195; and/or device 140 may include, for example, one or more of a processor 181, an input unit 182, an output unit 183, a memory unit 184, and/or a storage unit 185. Device 102 and/or device 140 may optionally include other suitable additional or alternative hardware components and/or software components. In some demonstrative embodiments, some or all of the components of one or more of device 102 and/or device 140 may be enclosed in a common housing or packaging, and may be interconnected or operably associated using one or more wired or wireless links. In other embodiments, components of one or more of device 102 and/or device 140 may be distributed among multiple or separate devices.
[0042] In some demonstrative embodiments, processor 191 and/or processor 181 may include, for example, a Central Processing Unit (CPU), a Digital Signal Processor (DSP), one or more processor cores, a single-core processor, a dual-core processor, a multiple-core processor, a microprocessor, a host processor, a controller, a plurality of processors or controllers, a chip, a microchip, one or more circuits, circuitry, a logic unit, an Integrated Circuit (IC), an Application-Specific IC (ASIC), or any other suitable multi-purpose or specific processor or controller. Processor 191 executes instructions, for example, of an Operating System (OS) of device 102 and/or of one or more suitable applications. Processor 181 executes instructions, for example, of an Operating System (OS) of device 140 and/or of one or more suitable applications. [0043] In some demonstrative embodiments, input unit 192 and/or input unit 182 may include, for example, a keyboard, a keypad, a mouse, a touch-screen, a touch-pad, a track-ball, a stylus, a microphone, or other suitable pointing device or input device. Output unit 193 and/or output unit 183 may include, for example, a monitor, a screen, a touch-screen, a flat panel display, a Light Emitting Diode (LED) display unit, a Liquid Crystal Display (LCD) display unit, a plasma display unit, one or more audio speakers or earphones, or other suitable output devices.
[0044] In some demonstrative embodiments, memory unit 194 and/or memory unit 184 may include, for example, a Random Access Memory (RAM), a Read Only Memory (ROM), a Dynamic RAM (DRAM), a Synchronous DRAM (SD-RAM), a flash memory, a volatile memory, a non- volatile memory, a cache memory, a buffer, a short term memory unit, a long term memory unit, or other suitable memory units. Storage unit 195 and/or storage unit 185 may include, for example, a hard disk drive, a floppy disk drive, a Compact Disk (CD) drive, a CD-ROM drive, a DVD drive, or other suitable removable or non-removable storage units. Memory unit 194 and/or storage unit 195, for example, may store data processed by device 102. Memory unit 184 and/or storage unit 185, for example, may store data processed by device 140.
[0045] In some demonstrative embodiments, wireless communication device 102 and/or device 140 may be capable of communicating content, data, information and/or signals via a wireless medium (WM) 103. In some demonstrative embodiments, wireless medium 103 may include, for example, a radio channel, a cellular channel, an RF channel, a WiFi channel, an IR channel, a Bluetooth (BT) channel, a Direct- Sequence Spread Spectrum (DSSS) channel, a BT Low Energy (BLE) channel, a Global Navigation Satellite System (GNSS) Channel, and the like. [0046] In some demonstrative embodiments, WM 103 may include a channel over a 2.4 Gigahertz (GHz) frequency band, a channel over a 5GHz frequency band, a channel over a millimeterWave (mmWave) frequency band, e.g., a 60GHz frequency band, a channel over a sub 1 Gigahertz (S IG) frequency band, and/or any other channel over any other band. [0047] In some demonstrative embodiments, device 102 and/or device 140 may include one or more radios including circuitry and/or logic to perform wireless communication between devices 102, 140 and/or one or more other wireless communication devices. For example, device 102 may include at least one radio 114, and/or device 140 may include at least one radio 144.
[0048] In some demonstrative embodiments, radios 114 and/or 144 may include one or more wireless receivers (Rx) including circuitry and/or logic to receive wireless communication signals, RF signals, frames, blocks, transmission streams, packets, messages, data items, and/or data. For example, radio 114 may include at least one receiver 116, and/or radio 144 may include at lest one receiver 146.
[0049] In some demonstrative embodiments, radios 114 and/or 144 may include one or more wireless transmitters (Tx) including circuitry and/or logic to transmit wireless communication signals, RF signals, frames, blocks, transmission streams, packets, messages, data items, and/or data. For example, radio 114 may include at least one transmitter 118, and/or radio 144 may include at least one transmitter 148.
[0050] In some demonstrative embodiments, radio 114, radio 144, transmitter 118, transmitter 148, receiver 116, and/or receiver 148 may include circuitry; logic; Radio Frequency (RF) elements, circuitry and/or logic; baseband elements, circuitry and/or logic; modulation elements, circuitry and/or logic; demodulation elements, circuitry and/or logic; amplifiers; analog to digital and/or digital to analog converters; filters; and/or the like. For example, radios 114 and/or 144 may include or may be implemented as part of a wireless Network Interface Card (NIC), and the like. [0051] In some demonstrative embodiments, radios 114 and/or 144 may include, or may be associated with, one or more antennas 107 and/or 147, respectively.
[0052] In one example, device 102 may include a single antenna 107. In another example, device 102 may include two or more antennas 107.
[0053] In one example, device 140 may include a single antenna 147. In another example, device 140 may include two or more antennas 147.
[0054] Antennas 107 and/or 147 may include any type of antennas suitable for transmitting and/or receiving wireless communication signals, blocks, frames, transmission streams, packets, messages and/or data. For example, antennas 107 and/or 147 may include any suitable configuration, structure and/or arrangement of one or more antenna elements, components, units, assemblies and/or arrays. Antennas 107 and/or 147 may include, for example, antennas suitable for directional communication, e.g., using beamforming techniques. For example, antennas 107 and/or 147 may include a phased array antenna, a multiple element antenna, a set of switched beam antennas, and/or the like. In some embodiments, antennas 107 and/or 147 may implement transmit and receive functionalities using separate transmit and receive antenna elements. In some embodiments, antennas 107 and/or 147 may implement transmit and receive functionalities using common and/or integrated transmit/receive elements.
[0055] In some demonstrative embodiments, device 102 may include a controller 124, and/or device 140 may include a controller 154. Controller 124 may be configured to perform and/or to trigger, cause, instruct and/or control device 102 to perform, one or more communications, to generate and/or communicate one or more messages and/or transmissions, and/or to perform one or more functionalities, operations and/or procedures between devices 102, 140 and/or one or more other devices; and/or controller 154 may be configured to perform, and/or to trigger, cause, instruct and/or control device 140 to perform, one or more communications, to generate and/or communicate one or more messages and/or transmissions, and/or to perform one or more functionalities, operations and/or procedures between devices 102, 140 and/or one or more other devices, e.g., as described below.
[0056] In some demonstrative embodiments, controllers 124 and/or 154 may include, or may be implemented, partially or entirely, by circuitry and/or logic, e.g., one or more processors including circuitry and/or logic, memory circuitry and/or logic, Media-Access Control (MAC) circuitry and/or logic, Physical Layer (PHY) circuitry and/or logic, baseband (BB) circuitry and/or logic, a BB processor, a BB memory, Application Processor (AP) circuitry and/or logic, an AP processor, an AP memory, and/or any other circuitry and/or logic, configured to perform the functionality of controllers 124 and/or 154, respectively. Additionally or alternatively, one or more functionalities of controllers 124 and/or 154 may be implemented by logic, which may be executed by a machine and/or one or more processors, e.g., as described below.
[0057] In one example, controller 124 may include circuitry and/or logic, for example, one or more processors including circuitry and/or logic, to cause, trigger and/or control a wireless device, e.g., device 102, and/or a wireless station, e.g., a wireless STA implemented by device 102, to perform one or more operations, communications and/or functionalities, e.g., as described herein. [0058] In one example, controller 154 may include circuitry and/or logic, for example, one or more processors including circuitry and/or logic, to cause, trigger and/or control a wireless device, e.g., device 140, and/or a wireless station, e.g., a wireless STA implemented by device 140, to perform one or more operations, communications and/or functionalities, e.g., as described herein.
[0059] In some demonstrative embodiments, at least part of the functionality of controller 124 may be implemented as part of one or more elements of radio 114, and/or at least part of the functionality of controller 154 may be implemented as part of one or more elements of radio 144. [0060] In other embodiments, the functionality of controller 124 may be implemented as part of any other element of device 102, and/or the functionality of controller 154 may be implemented as part of any other element of device 140.
[0061] In some demonstrative embodiments, device 102 may include a message processor 128 configured to generate, process and/or access one or messages communicated by device 102.
[0062] In one example, message processor 128 may be configured to generate one or more messages to be transmitted by device 102, and/or message processor 128 may be configured to access and/or to process one or more messages received by device 102, e.g., as described below. [0063] In some demonstrative embodiments, device 140 may include a message processor 158 configured to generate, process and/or access one or messages communicated by device 140.
[0064] In one example, message processor 158 may be configured to generate one or more messages to be transmitted by device 140, and/or message processor 158 may be configured to access and/or to process one or more messages received by device 140, e.g., as described below.
[0065] In some demonstrative embodiments, message processors 128 and/or 158 may include, or may be implemented, partially or entirely, by circuitry and/or logic, e.g., one or more processors including circuitry and/or logic, memory circuitry and/or logic, MAC circuitry and/or logic, PHY circuitry and/or logic, BB circuitry and/or logic, a BB processor, a BB memory, AP circuitry and/or logic, an AP processor, an AP memory, and/or any other circuitry and/or logic, configured to perform the functionality of message processors 128 and/or 158, respectively. Additionally or alternatively, one or more functionalities of message processors 128 and/or 158 may be implemented by logic, which may be executed by a machine and/or one or more processors, e.g., as described below. [0066] In some demonstrative embodiments, at least part of the functionality of message processor 128 may be implemented as part of radio 114, and/or at least part of the functionality of message processor 158 may be implemented as part of radio 144.
[0067] In some demonstrative embodiments, at least part of the functionality of message processor 128 may be implemented as part of controller 124, and/or at least part of the functionality of message processor 158 may be implemented as part of controller 154.
[0068] In other embodiments, the functionality of message processor 128 may be implemented as part of any other element of device 102, and/or the functionality of message processor 158 may be implemented as part of any other element of device 140.
[0069] In some demonstrative embodiments, at least part of the functionality of controller 124 and/or message processor 128 may be implemented by an integrated circuit, for example, a chip, e.g., a System on Chip (SoC). In one example, the chip or SoC may be configured to perform one or more functionalities of radio 114. For example, the chip or SoC may include one or more elements of controller 124, one or more elements of message processor 128, and/or one or more elements of radio 114. In one example, controller 124, message processor 128, and radio 114 may be implemented as part of the chip or SoC. [0070] In other embodiments, controller 124, message processor 128 and/or radio 114 may be implemented by one or more additional or alternative elements of device 102.
[0071] In some demonstrative embodiments, at least part of the functionality of controller 154 and/or message processor 158 may be implemented by an integrated circuit, for example, a chip, e.g., a System on Chip (SoC). In one example, the chip or SoC may be configured to perform one or more functionalities of radio 144. For example, the chip or SoC may include one or more elements of controller 154, one or more elements of message processor 158, and/or one or more elements of radio 144. In one example, controller 154, message processor 158, and radio 144 may be implemented as part of the chip or SoC.
[0072] In other embodiments, controller 154, message processor 158 and/or radio 144 may be implemented by one or more additional or alternative elements of device 140. [0073] In some demonstrative embodiments, device 102 and/or device 140 may include a wearable device, a sensor, small device, a mobile device, and/or any other device, which may be, for example, powered by a battery and/or any other power source having a limited capacity.
[0074] In some demonstrative embodiments, device 102 and/or device 140 may support wireless communication technologies such as, for example, Wi-Fi, Bluetooth (BT), DSSS, and/or any other additional or alternative technology, for example, to connect between device 102, device 140, and/or other wireless devices.
[0075] In some demonstrative embodiments, device 140 may include a wearable device and/or a sensor device powered by a power source having a limited capacity, e.g., a small battery.
[0076] In some demonstrative embodiments, device 140 may be configured to communicate data with another device, e.g., device 102, which may be less power constrained than device 140, for example, a Smartphone.
[0077] In some demonstrative embodiments, communicating data between device 102 and device 140 may consume power of the power source of device 140.
[0078] In some demonstrative embodiments, minimizing energy consumption of one or more communication blocks, modules and/or elements of device 140 may be beneficial, and in some cases, even critical, for example, in order to reduce and/or minimize power consumption of the power source of device 140. [0079] In some demonstrative embodiments, power consumption of device 140 may be reduced, e.g., minimized, for example, by powering off one or more communication blocks, modules and/or elements of device 140, e.g., as much as possible, for example, while maintaining data transmission and/or reception capabilities of device 140, e.g., without substantially increasing latency and/or degrading quality of data communication. [0080] In one example, one or more communication blocks, modules and/or elements of device 140 may be powered on and/or may be woken up, for example, only when there is data to transmit, and/or only when there is data to receive. According to this example, the one or more communication blocks, modules and/or elements of device 140 may be powered off and/or switched to a sleep mode, for example, for the rest of the time.
[0081] For example, one or more elements of radio 144 may be powered on and/or may be woken up, for example, only when device 140 has data to transmit, and/or only when device 140 has data to receive. According to this example, one or more elements of radio 144 may be powered off and/or switched to the sleep mode, for example, for the rest of the time.
[0082] In some demonstrative embodiments, device 140 may include a wakeup receiver 150 configured to power on and/or to wake up radio 144 of device 140.
[0083] In some demonstrative embodiments, wakeup receiver 150 may wake up radio 144, for example, based on a packet, e.g., a wakeup packet, received from another device, e.g., device 102, which is, for example, to transmit data to device 140.
[0084] In some demonstrative embodiments, wakeup receiver 150 may include a receiver 156 configured to receive the wakeup packet.
[0085] In some demonstrative embodiments, wakeup receiver 150 may include circuitry and/or logic configured to receive, decode, demodulate, and/or process the wakeup packet.
[0086] In some demonstrative embodiments, receiver 156 may include circuitry; logic; Radio Frequency (RF) elements, circuitry and/or logic; baseband elements, circuitry and/or logic; demodulation elements, circuitry and/or logic; amplifiers; analog to digital converters; filters; and/or the like.
[0087] In some demonstrative embodiments, wakeup receiver 150 may include a controller 159 configured to control one or more operations and/or functionalities of wakeup receiver 150, e.g., for processing the wakeup packet and/or waking up radio 144. For example, controller 159 may be configured to control a power supply of radio 144, and/or any other mechanism to wake up radio 144, e.g., upon determining that a wakeup packet has been received by wakeup receiver 150. [0088] In some demonstrative embodiments, controller 159 may be configured to perform one or more communications, to generate and/or communicate one or more messages and/or transmissions, and/or to perform one or more functionalities, operations and/or procedures, e.g., as described below. [0089] In some demonstrative embodiments, controller 159 may include, or may be implemented, partially or entirely, by circuitry and/or logic, e.g., one or more processors including circuitry and/or logic, memory circuitry and/or logic, MAC circuitry and/or logic, PHY circuitry and/or logic, BB circuitry and/or logic, a BB processor, a BB memory, AP circuitry and/or logic, an AP processor, an AP memory, and/or any other circuitry and/or logic, configured to perform the functionality of controller 159. Additionally or alternatively, one or more functionalities of controller 159 may be implemented by logic, which may be executed by a machine and/or one or more processors, e.g., as described below.
[0090] In one example, controller 159 may include circuitry and/or logic, for example, one or more processors including circuitry and/or logic, to cause a wireless device, e.g., device 140, and/or a wireless station, e.g., a wireless STA implemented by device 140, to perform one or more operations, communications and/or functionalities, e.g., as described herein.
[0091] In some demonstrative embodiments, wakeup receiver 150 may include a message processor 157 configured to process and/or access one or messages communicated by wakeup receiver 150.
[0092] In some demonstrative embodiments, message processor 157 may be configured to process one or more wakeup packets received by wakeup receiver 150, and/or to indicate to controller 159 that a wakeup packet is received. [0093] In one example, message processor 157 may be configured to access, process, demodulate and/or decode reception of the wakeup packets by a wireless station, e.g., a wireless STA implemented by device 140.
[0094] In some demonstrative embodiments, message processor 157 may include, or may be implemented, partially or entirely, by circuitry and/or logic, e.g., one or more processors including circuitry and/or logic, memory circuitry and/or logic, MAC circuitry and/or logic, PHY circuitry and/or logic, BB circuitry and/or logic, a BB processor, a BB memory, AP circuitry and/or logic, an AP processor, an AP memory, and/or any other circuitry and/or logic, configured to perform the functionality of message processor 157, respectively. Additionally or alternatively, one or more functionalities of message processor 157 may be implemented by logic, which may be executed by a machine and/or one or more processors, e.g., as described below. [0095] In some demonstrative embodiments, at least part of the functionality of message processor 157 may be implemented as part of message processor 158.
[0096] In some demonstrative embodiments, at least part of the functionality of message processor 157 may be implemented as part of any other element of wakeup receiver 150. For example, at least part of the functionality of message processor 157 may be implemented as part of receiver 156 and/or controller 159.
[0097] In some demonstrative embodiments, at least part of the functionality of receiver 156, controller 159 and/or message processor 157 may be implemented by an integrated circuit, for example, a chip, e.g., an SoC. In one example, the chip or SoC may be configured to perform one or more functionalities of radio 144, controller 154 and/or message processor 158. For example, the chip or SoC may include one or more elements of controller 159, one or more elements of message processor 157, and/or one or more elements of receiver 156, one or more elements of radio 144, one or more elements of message processor 158, and/or one or more elements of controller 154. In one example, wakeup receiver 150, message processor 158, controller 154, and/or radio 144 may be implemented as part of the chip or SoC.
[0098] In other embodiments, radio 144, wakeup receiver 150, controller 154 and/or message processor 158 may be implemented by one or more additional or alternative elements of device 140.
[0099] In some demonstrative embodiments, wakeup receiver 150 may be associated with one or more of antennas 147, e.g., which may be shared with radio 144.
[00100] In other embodiments, wakeup receiver 150 may include, or may be associated with, another, e.g., separate, antenna.
[00101] In some demonstrative embodiments, wakeup receiver 150 may be configured to wake up radio 144, for example, if device 140 has data to transmit, and/or if data is to be received by radio 144. [00102] In one example, wakeup receiver 150 may be configured to implement a low-power wakeup receiver (LP-WUR) scheme, for example, to wake up radio 144, e.g., only when device 140 is to receive data and/or to transmit data.
[00103] In some demonstrative embodiments, wakeup receiver 150 may have, for example, a relatively low power consumption, e.g., less than 100 microwatts. Accordingly, the power consumption of device 140 may be reduced for example, during times when there is no data to be received at device 140 and only wakeup receiver 150 is on.
[00104] In some demonstrative embodiments, wakeup receiver 150 may wake up radio 144, for example, based on a wakeup packet received from device 102.
[00105] In one example, receiver 156 may be configured to receive the wakeup packet from device 102, message processor 156 may be configured to process the wakeup packet, and/or controller 159 may be configured to wake up radio 144.
[00106] In some demonstrative embodiments, device 140 may be configured to transmit the wakeup packet to device 102, for example, to indicate to wake up receiver 150 that the radio 144 is to be woken up, e.g., to receive data from device 102.
[00107] In some demonstrative embodiments, controller 159 may be configured to cause radio 144 to wake up, e.g., to switch to an active mode, for example, to receive data from device 102, e.g., subsequent to receiving the wakeup packet from device 102.
[00108] In some demonstrative embodiments, controller 159 may be configured to cause, control and/or trigger radio 144 to wake up, e.g., to switch to an active mode, for example, to transmit data to device 102 and/or to another device. [00109] In some demonstrative embodiments, device 102 and/or device 140 may be configured to communicate the wakeup packet, for example, in compliance with one or more wireless communication standards and/or protocols.
[00110] In some demonstrative embodiments, device 102 and/or device 140 may be configured to communicate the wakeup packet, for example, in compliance with one or more existing wireless communication standards and/or protocols ("legacy standards"), for example, in compliance with one or more IEEE 802.11 standards, BT standards, DSSS standards, and the like.
[00111] In some demonstrative embodiments, the at least one radio 144 may include one or more radios e.g., as described below. [00112] In some demonstrative embodiments, the at least one radio 144 may include one or more radios of one or more radio types, e.g., as described below.
[00113] In some demonstrative embodiments, radio 144 may include radios having a radio type of an OFDM radio, a DSSS radio, and/or a BT radio, e.g., as described below. [00114] In other embodiments, the at least one radio 144 may include one or more radios of other additional or alternative radio type.
[00115] In some demonstrative embodiments, the at least one radio 144 may include at least one of an OFDM radio 141, a BT radio 143, and/or a DSSS radio 145, e.g., as described below. [00116] In other embodiments, the at least one radio 144 may include any other additional or alternative radio, e.g., a Z-wave radio.
[00117] In some demonstrative embodiments, radios 114 and/or 141 may be configured to communicate according to an OFDM scheme. For example, radios 114 and/or 141 may include an OFDM receiver and/or an OFDM transmitter. [00118] In some demonstrative embodiments, radios 114 and/or 143 may be configured to communicate according to a BT scheme. For example, radios 114 and/or 143 may include a BT receiver and/or a BT transmitter.
[00119] In some demonstrative embodiments, radios 114 and/or 145 may be configured to communicate according to a DSSS scheme. For example, radios 114 and/or 145 may include a DSSS receiver and/or a DSSS transmitter.
[00120] In some demonstrative embodiments, DSSS radio 145 may include a Zigbee radio. In other embodiments, DSSS radio 145 may include any other DSSS radio.
[00121] In some demonstrative embodiments, the LP-WUR scheme may be applied to the BT technology, and/or the DSSS technology, for example, in addition to the OFDM technology, e.g., to reduce power consumption without an increase in latency, e.g., as described below.
[00122] In some demonstrative embodiments, it many not be efficient to design a dedicated BT wakeup signal and a dedicated BT LP-WUR; and/or to design a dedicated DSSS wakeup signal and a dedicated DSSS LP-WUR, for example, to enable the LP-WUR scheme for the BT technology, and/or the DSSS technology, e.g., as described below.
[00123] In one example, a device, e.g., as a Smartwatch, including multiple radios, e.g., a BT radio, a DSSS radio and/or an OFDM radio, may require multiple LP- WURs, e.g., a BT LP-WUR, a DSSS LP-WUR, and/or an OFDM LP-WUR, to wake up the respective multiple radios. Additionally, it may not be advantageous to define a dedicated wakeup signal for each technology, e.g., the Wi-Fi technology, the BT technology, and/or the DSSS technology.
[00124] Reference is made to Fig. 2, which schematically illustrates a scheme of waking up a device 200 including multiple radios, to demonstrate a technical problem, which may be solved in accordance with some demonstrative embodiment.
[00125] As shown in Fig. 2, device 200 may communicate with a first device 214 including a Wi-Fi radio, a second device 216 including a BT radio, and/or a third device 218 including a DSSS radio. [00126] In some demonstrative embodiments, it may not be advantageous to have each radio technology, e.g., BT, Wi-Fi and/or DSSS technologies, implements it own WUR and its own wake-up signal.
[00127] In some demonstrative embodiments, there may be a technical problem to implement a dedicated WUR and a dedicated wake-up signal for each radio technology, for example, as such an implementation may increase cost and/or complexity of multi-radio devices.
[00128] For example, it may not be advantageous to require device 202 to use a dedicated Wi-Fi LP-WUR 221 to wake up a Wi-Fi radio 222 based on a dedicated Wi-Fi wakeup signal 215 from the Wi-Fi radio of device 214. [00129] For example, it may not be advantageous to require device 202 to use a dedicated BT LP-WUR 223 to wake up a BT radio 224 based on a dedicated BT wakeup signal 217 from the BT radio of device 216.
[00130] For example, it may not be advantageous to require device 202 to use a dedicated DSSS LP-WUR 225 to wake up a DSSS radio 226 based on a dedicated DSSS wakeup signal 219 from the DSSS radio of device 218.
[00131] Referring back to Fig. 1, in some demonstrative embodiments, devices 102 and/140 may be configured to utilize a unified wake-up signal (uWUS), which may be generated by heterogeneous radios, e.g., a BT radio, a DSSS radio, an OFDM radio, and/or any other radio, e.g., as described below.
[00132] In some demonstrative embodiments, the uWUS may be received by a unified wake-up receiver (uWURx), which may be configured to wake up different types of radios, for example, a BT radio, a DSSS radio, an OFDM radio, and/or any other radio, e.g., as described below. [00133] In some demonstrative embodiments, using the uWUS and/or the uWURx may provide a technical solution for multi radio devices and/or may reduce cost and/or complexity of multi-radio devices, e.g., as described below.
[00134] Reference is made to Fig. 3, which schematically illustrates a scheme of waking up a device 340 including multiple radios, in accordance with some demonstrative embodiment. For example, device 140 (Fig. 1) may include, operate as, perform one or more operations of, and/or perform one or more functionalities of device 340.
[00135] In some demonstrative embodiments, as shown in Fig. 3, device 300 may communicate with a first device 314 including a Wi-Fi radio, a second device 316 including a BT radio, and/or a third device 318 including a DSSS radio. For example, device 102 (Fig. 1) may include, operate as, perform one or more operations of, and/or perform one or more functionalities of a device of devices 314, 316 and/or 318.
[00136] In some demonstrative embodiments, as shown in Fig. 3, a same uWURx and a same uWUS may be configured for each of a plurality of radio technologies, e.g., BT, Wi-Fi and/or DSSS technologies. [00137] In some demonstrative embodiments, as shown in Fig. 3, device 302 may implement a uWURx 322 to wake up a Wi-Fi radio 322, a BT radio 324, and/or a DSSS radio 326 of device 340, for example, based on a uWUS 315, e.g., as described below. [00138] In some demonstrative embodiments, as shown in Fig. 3, device 302 may implement a single uWURx 322, e.g., instead of Wi-Fi LP-WUR 221 (Fig. 2), BT LP- WUR 223 (Fig. 2) and/or DSSS LP-WUR 225 (Fig. 2).
[00139] In some demonstrative embodiments, as shown in Fig. 3, device 302 may utilize a unified wakeup signal, e.g., uWUS 315, for example, instead of three different types of wakeup signals, e.g., Wi-Fi wakeup signal 215 (Fig. 2), BT wakeup signal 217 (Fig. 2), and/or DSSS wakeup signal 219 (Fig. 2).
[00140] Referring back to Fig. 1, in some demonstrative embodiments, devices 102 and/140 may be configured to implement a uWUS, e.g., uWUS 315 (Fig. 3), and/or a uWURx, e.g., uWURx 322 (Fig. 3), e.g., as described below. [00141] In some demonstrative embodiments, controller 124 may be configured to cause, control, and/or trigger device 102 and/or message processor 128 to generate a wakeup packet including at least a radio type field and an address field, e.g., as described below.
[00142] In some demonstrative embodiments, the radio type field may be configured to identify a radio type of a radio to be woken up by a uWUS, e.g., uWUS 315 (Fig. 3)., e.g., as described below.
[00143] In some demonstrative embodiments, the radio type field may identify a BT radio, a DSSS radio, or an OFDM radio.
[00144] In other embodiments, the radio type field may identify any other additional or alternative other type of radio. In one example, the radio type field may identify a Z-wave radio.
[00145] In some demonstrative embodiments, the radio type field may be configured to identify a radio type of a radio of device 140 to be woken up, e.g., as described below. [00146] In one example, the radio type field may identify an OFDM radio, for example, if radio 141 is to be woken up based on the wakeup packet. [00147] In another example, the radio type field may identify a BT radio, for example, if radio 143 is to be woken up based on the wakeup packet.
[00148] In another example, the radio type field may identify a DSSS radio, for example, if radio 145 is to be woken up based on the wakeup packet. [00149] In other embodiments, the radio type field may be configured to identify a radio type of a radio transmitting the wakeup packet, e.g., a radio type of a radio of device 102.
[00150] In one example, the radio type field may identify an OFDM radio, for example, if radio 114 includes an OFDM radio. [00151] In another example, the radio type field may identify a BT radio, for example, if radio 114 includes a BT radio.
[00152] In another example, the radio type field may identify a DSSS radio, for example, if radio 114 includes a DSSS radio.
[00153] In some demonstrative embodiments, the address field may include an address of a radio of device 140 to be woken up.
[00154] In one example, the address field may include an address of radio 144 of device 140, for example, if the OFDM radio of device 140 is to be woken up.
[00155] In another example, the address field may include an address of radio 143 of device 140, for example, if the BT radio of device 140 is to be woken up. [00156] In another example, the address field may include an address of radio 145 of device 140, for example, if the DSSS radio of device 140 is to be woken up.
[00157] In some demonstrative embodiments, the wakeup packet may include a MAC header including the radio type field and the address field, e.g., as described below. [00158] In other embodiments, the radio type field and/or the address field may be includes as part of any other additional or alternative fields.
[00159] In some demonstrative embodiments, controller 124 may be configured to cause, control, and/or trigger device 102 and/or radio 114 to transmit a uWUS 130, for example, by modulating payload values of the wakeup packet according to a unified wakeup modulation scheme, for example, a unified On-Off keying (OOK) modulation scheme, e.g., as described below.
[00160] In some demonstrative embodiments, the unified OOK modulation scheme may include modulating a payload value by selecting, based on the payload value, whether or not to transmit an OOK transmit pulse during a unified OOK symbol period having a predefined duration, e.g., as described below.
[00161] In some demonstrative embodiments, the OOK transmit pulse may be based on the type of the radio of device 102, e.g., as described below.
[00162] In some demonstrative embodiments, the OOK transmit pulse may be detectable according to a plurality of radio technologies, e.g., an OFDM technology, a DSSS technology, and/or a BT/BLE technology, e.g., as described below.
[00163] In other embodiments, the OOK transmit pulse may be detectable according to any other additional or alternative radio technology. In one example, the OOK transmit pulse may be detectable according to, a Z-wave radio technology. [00164] In some demonstrative embodiments, the unified OOK symbol period may be common to transmission of the uWUS 130 according to the plurality of radio technologies, e.g., the OFDM technology, the DSSS technology, and/or the BT technology, e.g., as described below.
[00165] In some demonstrative embodiments, the predefined duration may include at least one OFDM symbol duration, e.g., as described below.
[00166] In some demonstrative embodiments, the predefined duration may include a duration of 4 microseconds ^sec) or an integer multiple of 4 microseconds, e.g., as described below.
[00167] In other embodiments, the predefined duration may include any other duration and/or may be based on any other parameter and/or radio technology. In one example, the predefined duration may include a duration of 2 μ$εο, 8 μ$εο, or 16
[00168] In some demonstrative embodiments, radio 114 may include an OFDM radio, e.g., as described below. [00169] In some demonstrative embodiments, the OOK transmit pulse may include an OFDM signal over a plurality of OFDM tones of an OFDM symbol, for example, when radio 114 includes the OFDM radio, e.g., as described below.
[00170] In one example, a signal bandwidth of an OFDM channel may be based on a number of subcarriers in the OFDM channel. For example, a number of 13 subcarriers at a center frequency may generate a 4.06 MHz signal bandwidth.
[00171] In some demonstrative embodiments, controller 124 may be configured to cause, control, and/or trigger device 102 and/or radio 114 to transmit uWUS 130 over an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz, for example, when radio 114 includes the OFDM radio, e.g., as described below. In other embodiments, any other OFDM channel may be used.
[00172] In one example, radio 114 may transmit uWUS 130 over an OFDM channel having a channel number and/or a central frequency, e.g., a follows:
• Channel#l over a central frequency of 2.412 GHz; · Channel#6 over a central frequency of 2.437 GHz; and/or
• Channel#l 1 over a central frequency of 2.462 GHz.
[00173] In another example, radio 114 may transmit uWUS 130 over any other OFDM channel.
[00174] In some demonstrative embodiments, controller 124 may be configured to cause, control, and/or trigger device 102 and/or radio 114 to transmit a preamble prior to uWUS 130, for example, when radio 114 includes the OFDM radio, e.g., as described below.
[00175] In some demonstrative embodiments, uWUS 130 may include a preamble ("legacy preamble") in compliance with one or more legacy standards. [00176] In some demonstrative embodiments, uWUS 130 may include a preamble in compliance with one or more legacy standards, for example, to enable one or more legacy devices to decode and/or process the preamble.
[00177] In some demonstrative embodiments, the preamble may be modulated according to an OFDM modulation scheme, e.g., as described below. [00178] In some demonstrative embodiments, uWUS 130 may be modulated according to an OFDM modulation scheme, e.g., as described below.
[00179] In some demonstrative embodiments, a bit value of "1" may be represented by transmitting a narrowband OFDM signal for the OFDM symbol duration, for example, for the predefined duration, e.g., 4 microseconds.
[00180] In some demonstrative embodiments, a bit value "0" may be represented by not transmitting any signal for the unified OOK symbol period, e.g., the OFDM symbol duration.
[00181] In some demonstrative embodiments, radio 114 may include a BT radio, e.g., as described below.
[00182] In some demonstrative embodiments, the OOK transmit pulse may include a BT signal over four Gaussian Frequency Shift Keying (GFSK) symbols, for example, when radio 114 includes the BT radio, e.g., as described below.
[00183] In some demonstrative embodiments, a BT GFSK symbol duration may be 1 μ$εο.
[00184] In some demonstrative embodiments, a bit value of "1" may be represented by transmitting 4 times the BT GFSK symbol duration, e.g., to create a 4 μ$εο OOK symbol.
[00185] In some demonstrative embodiments, a bit value of "0" may be represented by selecting not to transmit any signal during the unified OOK symbol period, e.g., the 4 μ$εο OOK symbol.
[00186] In some demonstrative embodiments, a signal bandwidth implemented for the uWUS 130 may be the same as a BT GFSK signal bandwidth, e.g., a signal bandwidth of 1 MHz. [00187] In one example, when a Bluetooth v2.0 and/or an enhanced data rate (EDR) mode may be supported by radio 114, data modulation of π/4-DQPSK may be used, e.g., by radio 114. According to this example, a spectrum of a signal modulated in the data modulation of π/4 Differential Quadrature Phase Shift Keying (π/4-DQPSK) may be closer to a DSSS spectral mask. [00188] In some demonstrative embodiments, controller 124 may be configured to cause, control, and/or trigger device 102 and/or radio 114 to transmit uWUS 130 over a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz, for example, when radio 114 includes the BT radio, e.g., as described below.
[00189] In one example, radio 114 may transmit uWUS 130 in one of the following BT channel numbers having the following central frequencies (fc), for example, based on a BLE channelization, for example, fc=2402+k*2 MHz, k=0, ... ,39, e.g., as follows:
• Channel#5 (k=5) over a central frequency of 2.412 GHz, e.g., same as Wi-Fi channel#l; · Channel#17 (k=17) over a central frequency of 2.436 GHz, e.g., lMHz off from the Wi-Fi channel #6 or +lMHz shift from the Wi-Fi channel #6; and/or
• Channel#30 (k=30) over a central frequency 2.462 GHz, e.g., same as Wi-Fi channel #11.
[00190] In another example, radio 114 may transmit uWUS 130 over any other BT or BLE channel.
[00191] In some demonstrative embodiments, radio 114 may include a DSSS radio, e.g., as described below.
[00192] In some demonstrative embodiments, the OOK transmit pulse may include a DSSS signal over 1/4 of an Offset Quadrature Phase Shift Keying (O-QPSK) symbol, for example, when radio 114 includes the DSSS radio, e.g., as described below.
[00193] In some demonstrative embodiments, the O-QPSK symbol duration may be 16 μ$εο including a 32 chip spreading, e.g., at a chip rate of 2Mchips/sec.
[00194] In some demonstrative embodiments, a bit value of "1" may be represented by transmitting a quarter (1/4) of the O-QPSK signal, e.g., to create a 4 μ$εο OOK symbol, for example, by masking the O-QPSK symbol, e.g., which may have the symbol duration of 16 μ$εο, with a masking pattern including zeros and ones, where each one and each zero is 4 μ$εο long.
[00195] In some demonstrative embodiments, a bit value of "0" may be represented by selecting not to transmit, or avoiding transmission of, any signal during the unified OOK symbol duration, e.g., the quarter of the O-QPSK signal. [00196] Reference is made to Fig. 4, which schematically illustrates a unified OOK modulation scheme 400 over a DSSS transmit signal, in accordance with some demonstrative embodiments.
[00197] In some demonstrative embodiments, as shown in Fig. 4, an OOK transmit pulse 410 may include a 4 μ$εο OOK symbol over the quarter of the O-QPSK signal.
[00198] Referring back to Fig. 1, in some demonstrative embodiments, device 102 and/or 140 may utilize an alternative unified OOK modulation scheme, e.g., as described below.
[00199] In one example, a bit value of "1" may be generated by a bit string of "0101" or "1010", and a bit value of "0" may be generated by a bit string of "1010" or "0101", where each bit represents a 1 μ$εο symbol duration, a 2 μ$εο symbol duration, or a 4 μ$εο symbol duration, for example, to create a unified OOK symbol having a respective duration of 4μ$εο, &μ$εο, or 16μ8εΰ .
[00200] According to this example, for the DSSS technology or the OFDM technology, a 4 μ$εο symbol may be represented by either "0101" or "1010"; and/or for the BT technology, four 1 μ$εο GFSK symbols may represent bit value of "1" or a bit value of "0".
[00201] In another example, a bit value of "1" may be generated by a bit string of "01" or "10", and a bit value of "0" may be generated by a bit string of "10" or "01", where each bit represents a 2μ$εο symbol duration or a 4μ$εο symbol duration, for example, to create a unified OOK symbol having a respective duration of 2μ$εο, or μ$εο.
[00202] In other embodiments, device 102 and/or device 140 may utilize any other OOK modulation scheme. [00203] In some demonstrative embodiments, controller 124 may be configured to cause, control, and/or trigger device 102 and/or radio 114 to transmit uWUS 130 over a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz, for example, when radio 114 includes the DSSS radio, e.g., as described below. In other embodiments, any other DSSS channel may be used. [00204] In one example, radio 114 may transmit uWUS 130 in a channel having one of the following channel numbers corresponding to the following central frequencies (fc), for example, based on a DSSS channelization, for example, fc = 2405 + 5 (k - 11) in megahertz, for k = 11, 12, 26, e.g., as follows:
• Channel* 12(k= 12) over a central frequency of 2.410 GHz + 2 MHz shift, e.g., same as Wi-Fi channel#l ; · Channel#17(k=17) over a central frequency of 2.435 GHz + 2 MHz shift, e.g., same as Wi-Fi channel#6; and/or
• Channel#22(k=22) over a central frequency of 2.460 GHz + 2 MHz shift, e.g., same as Wi-Fi channel#l 1.
[00205] In another example, radio 114 may transmit uWUS 130 over any other additional or alternative DSSS channel.
[00206] In some demonstrative embodiments, uWUS 130 may include a uWUS preamble and a uWUS payload including the radio type field and the address field, for example, in a MAC header, e.g., as described below.
[00207] Reference is made to Fig. 5, which schematically illustrates a format of a uWUS 500, in accordance with some demonstrative embodiments.
[00208] In one example, device 102 (Fig. 1) may be configured to generate and transmit uWUS 500 to device 140 (Fig. 1) to wake up a radio of radios 143, 144 and/or 145 (Fig. 1); and/or device 140 (Fig. 1) may be configured to receive and process uWUS 500 to wake up a radio of radios 143, 144 and/or 145 (Fig. 1), e.g., as described below.
[00209] In some demonstrative embodiments, as shown in Fig. 5, uWUS 500 may include a uWUS preamble 510, a uWUS payload 520, and/or one or more fields 526, e.g., as described below.
[00210] In one example, uWUS preamble 510 may be configured for packet acquisition, e.g., for finding a start of uWUS 500. For example, uWUS preamble 510 may include one or more training sequences, e.g., a Short Training Field (STF), and/or a Channel Estimation (CE) field.
[00211] In some demonstrative embodiments, uWUS payload 520 may include information that indicates which radio to wake up upon reception of uWUS 500, e.g., as described below. [00212] In some demonstrative embodiments, as shown in Fig. 5, uWUS payload 520 may include a radio type field 522, an address field 524, and/or one or more fields 526.
[00213] In some demonstrative embodiments, radio type field 522 and/or address field 524 may be part of a MAC header of uWUS 500. In other embodiments, radio type field 522 and/or address field 524 may be included as part of any other field.
[00214] In some demonstrative embodiments, radio type field 522 may indicate radio type, for example, of a radio to be woken up, e.g., a Wi-Fi radio, a BT radio, a DSSS radio, and/or any other type of radio, e.g., a Z-wave radio. The radio type indicated by radio type field 522 may also indicate to a receiver of uWUS 500 how to parse uWUS 500.
[00215] In some demonstrative embodiments, address field 524 may include the address of a radio, which is to be woken up based on uWUS 500.
[00216] In one example, radio type field 522 may include a value to indicate a WiFi radio or an OFDM radio, and address field 524 may include an address, e.g., a MAC address, of radio 141 (Fig. 1), for example, if uWUS 500 is to cause waking up of radio 141 (Fig. 1).
[00217] In another example, radio type field 522 may include a value to indicate a BT radio, and address field 524 may include an address, e.g., a MAC address, of radio 143 (Fig. 1), for example, if uWUS 500 is to cause waking up of radio 143 (Fig. 1).
[00218] In another example, radio type field 522 may include a value to indicate a DSSS radio, and address field 524 may include an address, e.g., a MAC address, of radio 145 (Fig. 1), for example, if uWUS 500 is to cause waking up of radio 145 (Fig. 1).
[00219] In some demonstrative embodiments, the one or more fields 526 may include one or more types of information, for example, based on the radio type in radio type field 522.
[00220] In one example, the one or more fields 526 may include a frame check sequence, for example, A Cyclic Redundancy Check (CRC). [00221] In another example, one or more fields 526 may include any other information and/or instructions for a receiver of uWUS 500. [00222] In some demonstrative embodiments, when a radio transmitting uWUS 500 is a Wi-Fi radio, a legacy preamble, e.g., in accordance with an IEEE 802.11 specification, may prepend the uWUS preamble 510, e.g., for coexistence.
[00223] Reference is made to Fig. 6, which schematically illustrates a first modulated uWUS 610, a second modulated uWUS 620, and a third modulated uWUS 630, in accordance with some demonstrative embodiments.
[00224] In some demonstrative embodiments, the first modulated uWUS 610 may be modulated according to the Wi-Fi technology, for example, by a Wi-Fi radio.
[00225] In some demonstrative embodiments, the second modulated uWUS 620 may be modulated according to the BT technology, for example, by a BT radio.
[00226] In some demonstrative embodiments, the third modulated uWUS 630 may be modulated according to the DSSS technology, for example, by a DSSS radio.
[00227] In some demonstrative embodiments, as shown in Fig. 6, uWUS 610 may include a legacy preamble 612, which may be modulated, for example, according to an OFDM modulation scheme.
[00228] In some demonstrative embodiments, as shown in Fig. 6, uWUS 610, uWUS 620 and/or uWUS 630 may include a uWUS preamble 614, and a uWUS payload 616, e.g., as described above with reference to Fig. 5.
[00229] In some demonstrative embodiments, as shown in Fig. 6, uWUS 610, uWUS 620 and/or uWUS 630 may be modulated according to the unified OOK modulation scheme.
[00230] For example, as shown in Fig. 6, the unified OOK modulation scheme may include modulating a value of "1" by transmitting an OOK transmit pulse 619 during a unified OOK symbol period 618 having a duration of 4 μ$εο; and modulating a value of "0" by not transmitting the OOK transmit pulse 619 during the unified OOK symbol period 618 having a duration of 4 μ$εο.
[00231] In another example, the unified OOK modulation scheme may include a unified OOK symbol period having any other duration, e.g., a duration of 2μ$εο, &μ$εο, or 16μ$εο, e.g., as described above. [00232] Reference is made to Fig. 7, which schematically illustrates a bandwidth of a uWUS, in accordance with some demonstrative embodiments. [00233] In one example, as shown in Fig, 7, a uWUS may be transmitted over the central frequency of Channel#l of a Wi-Fi channelization scheme, e.g., a channel with a 2.412 GHz central frequency.
[00234] In some demonstrative embodiments, as shown in Fig. 7, the uWUS may have a first bandwidth 702, for example, if the uWUS is modulated by an OFDM radio.
[00235] In some demonstrative embodiments, as shown in Fig. 7, the uWUS may have a second bandwidth 704, for example, if the uWUS is modulated by a DSSS radio. [00236] In one example, second bandwidth 704 may be shifted by 2 MHz, for example, to match first bandwidth 702.
[00237] In some demonstrative embodiments, as shown in Fig. 7, the uWUS may have a third bandwidth 706, for example, if the uWUS is modulated by a BT radio.
[00238] In one example, as shown in Fig. 7, the OFDM bandwidth, e.g., first bandwidth 702, covers at least the BT bandwidth and/or the DSSS bandwidth, e.g., bandwidths 704 and/or 706.
[00239] In some demonstrative embodiments, a receiver of the uWUS, e.g., wakeup receiver 150 (Fig. 1), may monitor and detect the uWUS over the first bandwidth 702, e.g., the OFDM bandwidth, which is the widest bandwidth, for example, to enable the receiver to monitor and detect a uWUS having a narrower bandwidth, e.g., a uWUS over bandwidth 706 or over bandwidth 704.
[00240] Referring back to Fig. 1, in some demonstrative embodiments, device 102 may be configured to transmit a uWUS, e.g., uWUS 130, uWUS 500 (Fig. 5), uWUS 610, uWUS 620, or uWUS 630 (Fig. 6), via a radio of a first radio type, for example, to wake up a radio of a second radio type of device 140, which may be different from the first radio type, e.g., as described below.
[00241] In one example, device 102 may transmit via a Wi-Fi radio a uWUS, e.g. uWUS 610 (Fig. 6), to wake up a BT radio of device 140, e.g., BT radio 143. According to this example, uWUS 610 (Fig. 6) may include radio type field 522 (Fig. 5) including a value to indicate a BT radio, and address field 524 (Fig. 5) including an address of BT radio 143. [00242] In some demonstrative embodiments, device 140 may be configured to monitor a wireless communication channel to detect the uWUS 130, e.g., uWUS 500 (Fig. 5), uWUS 610, uWUS 620, and/or uWUS 630 (Fig. 6).
[00243] In some demonstrative embodiments, for example, device 140 may be configured to monitor a wireless communication channel covering an OFDM channel, a BT channel and a DSSS channel.
[00244] For example, device 140 may be configured to monitor the OFDM channel bandwidth 702 (Fig. 7), e.g., as described above.
[00245] In some demonstrative embodiments, wakeup receiver 150 may include a uWURx, e.g., as described below.
[00246] In some demonstrative embodiments, controller 159 may be configured to cause, control, and/or trigger wakeup receiver 150 to monitor a wireless communication channel to detect uWUS 130 from radio 114 of device 102.
[00247] In some demonstrative embodiments, the wireless communication channel may include an OFDM channel having a central frequency of 2.412 GHz, 2.437GHz, or 2.462GHz, for example, according to the OFDM technology, e.g., as described above.
[00248] In some demonstrative embodiments, the wireless communication channel, e.g., the OFDM channel, may cover at least a BT channel having a central frequency of 2.412 GHz, 2.436GHz, or 2.462GHz, for example, according to the BT technology, e.g., as described above.
[00249] In some demonstrative embodiments, the wireless communication channel, e.g., the OFDM channel, may cover at least a DSSS channel having the central frequency of 2.410 GHz, 2.435GHz, or 2.460GHz, for example, according to the DSSS technology, e.g., as described above.
[00250] In one example, the wireless communication channel may include the Wi-Fi channel #1, which has the central frequency of 2.412 GHz. According to this example, the Wi-Fi channel #1 may cover at least the BT channel #5 having the central frequency of 2.412 GHz, and/or the DSSS channel #12 having the central frequency of 2.410 GHz. [00251] In some demonstrative embodiments, controller 159 may be configured to cause, control, and/or trigger wakeup receiver 150 to determine payload values of the wakeup packet by demodulating uWUS 130 according to the unified OOK modulation scheme, e.g., as described below. [00252] In some demonstrative embodiments, controller 159 may be configured to cause, control, and/or trigger wakeup receiver 150 to demodulate uWUS 130 by determining the OOK on-state of a payload value, e.g., when an OOK transmit pulse is detected during the unified OOK symbol period having the predefined duration; and/or by determining the OOK Off-state of the payload value, e.g., when the OOK transmit pulse is not detected during the unified OOK symbol period, as described above.
[00253] In some demonstrative embodiments, controller 159 may be configured to cause, control, and/or trigger wakeup receiver 150 to wake up a radio of device 140, for example, based at least on the radio type field and the address field in the wakeup packet. For example, wakeup receiver 150 may be configured to wake up a radio of device 140 based on the radio type indicated by radio type field 522 (Fig. 5) and an address of indicated by address field 524 (Fig. 5).
[00254] In some demonstrative embodiments, the radio type field may identify the radio type of the radio of device 140 to be woken up, e.g., as described above. [00255] In other embodiments, the radio type field may identify a radio that transmitted the uWUS.
[00256] For example, the radio type field may identify the radio type of the radio of device 102, e.g., the radio that transmitted the uWUS.
[00257] In some demonstrative embodiments, the address field may include the address of a radio to be woken up, e.g., as described above.
[00258] In some demonstrative embodiments, controller 159 may be configured to cause, control, and/or trigger wakeup receiver 150 to select the radio of device 140 to be woken up from the plurality of radios of device 140, e.g., radio 143 144 and/or 145, for example, based on the radio type field and the address field, e.g., as described below. [00259] In some demonstrative embodiments, controller 159 may be configured to cause, control, and/or trigger wakeup receiver 150 to wake up a radio of device 140, when a radio type of device 140 corresponds to the radio type identified by the radio type field, and an address of the radio of device 140 corresponds to the address in the address filed, e.g., as described below.
[00260] In one example, wakeup receiver 150 may monitor the channel to wait to detect uWUS 130, and may detect the beginning of the uWUS 130, for example, by correlating the received uWUS 130 with a predefined uWUS preamble.
[00261] In some demonstrative embodiments, if wakeup receiver 150 detects the start of the wakeup packet, wakeup receiver 150 may start to parse the uWUS pay load and to decode the uWUS payload.
[00262] In some demonstrative embodiments, wakeup receiver 150 may determine which radio of device 140 to wake up, for example, based on one or more rules, e.g., as described below. [00263] In some demonstrative embodiments, wakeup receiver 150 may wake up radio 141 of device 140, for example, if the radio type field 522 (Fig. 5) indicates a Wi-Fi radio, e.g., indicating that uWUS 130 was transmitted by a Wi-Fi radio of device 102; and if an address in address field 524 (Fig. 5) matches an address of radio 141, e.g., the address of the Wi-Fi radio. [00264] In some demonstrative embodiments, wakeup receiver 150 may wake up radio 145 of device 140, for example, if the radio type field 522 (Fig. 5) indicates a DSSS radio, e.g., indicating that uWUS 130 was transmitted by a DSSS radio of device 102; and if the address in address field 524 (Fig. 5) matches an address of radio 145, e.g., the address of the DSSS radio. [00265] In some demonstrative embodiments, wakeup receiver 150 may wake up radio 143 of device 140, for example, if the radio type field 522 (Fig. 5) indicates a BT radio, e.g., indicating that uWUS 130 was transmitted by a BT radio of device 102; and if the address in address field 524 (Fig. 5) matches an address of radio 143, e.g., the address of the BT radio. [00266] Reference is made to Fig. 8, which schematically illustrates a method of communicating a unified wakeup signal, in accordance with some demonstrative embodiments. For example, one or more of the operations of the method of Fig. 8 may be performed by one or more elements of a system, e.g., system 100 (Fig. 1), for example, one or more wireless devices, e.g., device 102 (Fig. 1) and/or device 140 (Fig. 1); a controller, e.g., controller 159 (Fig. 1), controller 124 (Fig. 1) and/or controller 154 (Fig. 1); a radio, e.g., radio 114 (Fig. 1) and/or radio 144 (Fig. 1); a transmitter, e.g., transmitter 118 and/or transmitter 148 (Fig. 1); a receiver e.g., receiver 116, receiver 156 and/or receiver 146 (Fig. 1); a wakeup receiver, e.g., wakeup receiver 150 (Fig. 1); and/or a message processor, e.g., message processor 157 (Fig. 1), message processor 128 (Fig. 1) and/or message processor 158 (Fig. 1).
[00267] As indicated at block 802, the method may include generating at a first wireless device a wakeup packet including at least a radio type field and an address field. For example, the radio type field may be configured to identify a radio type of a radio of a second wireless communication device to be woken up, and the address field may include an address of the radio of the second wireless device to be woken up.. For example, controller 124 (Fig. 1) may control, cause and/or trigger device 102 (Fig. 1) to generate wakeup packet 130 (Fig. 1) including radio type field 522 (Fig. 5) and address field 524 (Fig. 5), e.g., as described above.
[00268] As indicated at block 804, the method may include transmitting by a radio of the first wireless communication device a uWUS by modulating payload values of the wakeup packet according to a unified OOK modulation scheme. For example, controller 124 (Fig. 1) may control, cause and/or trigger radio 114 (Fig. 1) to transmit uWUS 130 (Fig. 1) by modulating payload values of the wakeup packet according to the unified OOK modulation scheme, e.g., as described above.
[00269] As indicated at block 806 modulating the payload values may include selecting, based on the payload value, whether or not to transmit an OOK transmit pulse during a unified OOK symbol period having a predefined duration. For example, the OOK transmit pulse may be based on a radio type of the radio of the first wireless communication device, e.g., as described above. For example, controller 124 (Fig. 1) may control, cause and/or trigger radio 114 (Fig. 1) to select, based on the payload value, whether or not to transmit the OOK transmit pulse during the unified OOK symbol period having the predefined duration. For example, the OOK transmit pulse may be based on the type of the radio of device 102 (Fig. 2), e.g., as described above. [00270] Reference is made to Fig. 9, which schematically illustrates a method of communicating a unified wakeup signal, in accordance with some demonstrative embodiments. For example, one or more of the operations of the method of Fig. 9 may be performed by one or more elements of a system, e.g., system 100 (Fig. 1), for example, one or more wireless devices, e.g., device 102 (Fig. 1) and/or device 140 (Fig. 1); a controller, e.g., controller 159 (Fig. 1), controller 124 (Fig. 1) and/or controller 154 (Fig. 1); a radio, e.g., radio 114 (Fig. 1) and/or radio 144 (Fig. 1); a transmitter, e.g., transmitter 118 and/or transmitter 148 (Fig. 1); a receiver e.g., receiver 116, receiver 156 and/or receiver 146 (Fig. 1); a wakeup receiver, e.g., wakeup receiver 150 (Fig. 1); and/or a message processor, e.g., message processor 157 (Fig. 1), message processor 128 (Fig. 1) and/or message processor 158 (Fig. 1).
[00271] As indicated at block 902, the method may include monitoring, at a wakeup receiver of a first wireless communication device, a wireless communication channel to detect a uWUS from a radio of a second wireless communication device. For example, wakeup receiver 150 (Fig. 1) may monitor the wireless communication channel to detect uWUS 130 (Fig. 1) from device 102 (Fig. 1), e.g., as described above.
[00272] As indicated at block 904, the method may include determining payload values of a wakeup packet by demodulating the uWUS according to a unified OOK modulation scheme. For example, wakeup receiver 150 (Fig. 1) may determine payload values of the wakeup packet by demodulating uWUS 130 (Fig. 1) according to the unified OOK modulation scheme, e.g., as described above.
[00273] As indicated at block 906, demodulating the uWUS may include determining an OOK on-state of a payload value when an OOK transmit pulse is detected during a unified OOK symbol period having a predefined duration, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the unified OOK symbol period. For example, wakeup receiver 150 (Fig. 1) may determine the OOK on-state of the payload value when the OOK transmit pulse 619 (Fig. 6) is detected during the unified OOK symbol period 618 (Fig. 6) having the predefined duration, and may determine the OOK Off-state of the payload value when the OOK transmit pulse 619 (Fig. 6) is not detected during the unified OOK symbol period 618 (Fig. 6), e.g., as described above. [00274] As indicated at block 908, the method may include waking up a radio of the first wireless communication device based at least on a radio type field and an address field in the wakeup packet. For example, wakeup receiver 150 (Fig. 1) may wake up a radio of device 140 (Fig. 1) based at least on radio type field 522 (Fig. 5) and address field 524 (Fig. 5), e.g., as described above.
[00275] Reference is made to Fig. 10, which schematically illustrates a product of manufacture 1000, in accordance with some demonstrative embodiments. Product 1000 may include one or more tangible computer-readable ("machine readable") non- transitory storage media 1002, which may include computer-executable instructions, e.g., implemented by logic 1004, operable to, when executed by at least one processor, e.g., computer processor, enable the at least one processor to implement one or more operations at device 102 (Fig. 1), device 140 (Fig. 1), radio 114 (Fig. 1), radio 144 (Fig. 1), wakeup receiver 150 (Fig. 1), transmitter 118 (Fig. 1), transmitter 148 (Fig. 1), receiver 116 (Fig. 1), receiver 146 (Fig. 1), controller 124 (Fig. 1), controller 154 (Fig. 1), message processor 128 (Fig. 1), message processor 128 (Fig. 1), and/or message processor 158 (Fig. 1), , to cause device 102 (Fig. 1), device 140 (Fig. 1), radio 114 (Fig. 1), radio 144 (Fig. 1), wakeup receiver 150 (Fig. 1), transmitter 118 (Fig. 1), transmitter 148 (Fig. 1), receiver 116 (Fig. 1), receiver 146 (Fig. 1), controller 124 (Fig. 1), controller 154 (Fig. 1), message processor 128 (Fig. 1), message processor 128 (Fig. 1), and/or message processor 158 (Fig. 1) to perform one or more operations, and/or to perform, trigger and/or implement one or more operations, communications and/or functionalities described above with reference to Figs. 1, 2, 3, 4, 5, 6, 7, 8 and/or 9, and/or one or more operations described herein. The phrase "non-transitory machine-readable medium" is directed to include all computer-readable media, with the sole exception being a transitory propagating signal.
[00276] In some demonstrative embodiments, product 1000 and/or storage media 1002 may include one or more types of computer-readable storage media capable of storing data, including volatile memory, non-volatile memory, removable or non- removable memory, erasable or non-erasable memory, writeable or re-writeable memory, and the like. For example, storage media 1002 may include, RAM, DRAM, Double-Data-Rate DRAM (DDR-DRAM), SDRAM, static RAM (SRAM), ROM, programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), Compact Disk ROM (CD-ROM), Compact Disk Recordable (CD-R), Compact Disk Rewriteable (CD-RW), flash memory (e.g., NOR or NAND flash memory), content addressable memory (CAM), polymer memory, phase-change memory, ferroelectric memory, silicon-oxide-nitride- oxide- silicon (SONOS) memory, a disk, a floppy disk, a hard drive, an optical disk, a magnetic disk, a card, a magnetic card, an optical card, a tape, a cassette, and the like. The computer-readable storage media may include any suitable media involved with downloading or transferring a computer program from a remote computer to a requesting computer carried by data signals embodied in a carrier wave or other propagation medium through a communication link, e.g., a modem, radio or network connection.
[00277] In some demonstrative embodiments, logic 1004 may include instructions, data, and/or code, which, if executed by a machine, may cause the machine to perform a method, process and/or operations as described herein. The machine may include, for example, any suitable processing platform, computing platform, computing device, processing device, computing system, processing system, computer, processor, or the like, and may be implemented using any suitable combination of hardware, software, firmware, and the like.
[00278] In some demonstrative embodiments, logic 1004 may include, or may be implemented as, software, a software module, an application, a program, a subroutine, instructions, an instruction set, computing code, words, values, symbols, and the like. The instructions may include any suitable type of code, such as source code, compiled code, interpreted code, executable code, static code, dynamic code, and the like. The instructions may be implemented according to a predefined computer language, manner or syntax, for instructing a processor to perform a certain function. The instructions may be implemented using any suitable high-level, low-level, object- oriented, visual, compiled and/or interpreted programming language, such as C, C++, Java, BASIC, Matlab, Pascal, Visual BASIC, assembly language, machine code, and the like. EXAMPLES
[00279] The following examples pertain to further embodiments. [00280] Example 1 includes an apparatus comprising logic and circuitry configured to cause a first wireless communication device to generate a wakeup packet comprising at least a radio type field and an address field, the radio type field to identify a radio type of a radio of a second wireless communication device to be woken up, the address field comprising an address of the radio of the second wireless communication device, the radio type field to identify an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio; and transmit by a radio of the first wireless communication device a Unified Wakeup Signal (uWUS) by modulating payload values of the wakeup packet according to a unified On-Off keying (OOK) modulation scheme comprising modulating a payload value by selecting, based on the payload value, whether or not to transmit an OOK transmit pulse during a unified OOK symbol period having a predefined duration, the OOK transmit pulse is based on a radio type of the radio of the first wireless communication device. [00281] Example 2 includes the subject matter of Example 1, and optionally, wherein the radio of the first wireless communication device comprises the OFDM radio, the OOK transmit pulse comprises an OFDM signal over a plurality of OFDM tones of an OFDM symbol.
[00282] Example 3 includes the subject matter of Example 2, and optionally, wherein the apparatus is configured to cause the radio of the first wireless communication device to transmit the uWUS over an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz.
[00283] Example 4 includes the subject matter of Example 2 or 3, and optionally, wherein the apparatus is configured to cause the radio of the first wireless communication device to transmit a preamble prior to the uWUS, the preamble modulated according to an OFDM modulation scheme.
[00284] Example 5 includes the subject matter of Example 1, and optionally, wherein the radio of the first wireless communication device comprises the BT radio, the OOK transmit pulse comprises a BT signal over four Gaussian Frequency Shift Keying (GFSK) symbols.
[00285] Example 6 includes the subject matter of Example 5, and optionally, wherein the apparatus is configured to cause the radio of the first wireless communication device to transmit the uWUS over a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz.
[00286] Example 7 includes the subject matter of Example 1, and optionally, wherein the radio of the first wireless communication device comprises a DSSS radio, the OOK transmit pulse comprises a DSSS signal over 1/4 of an Offset Quadrature Phase Shift Keying (O-QPSK) symbol.
[00287] Example 8 includes the subject matter of Example 7, and optionally, wherein the apparatus is configured to cause the radio of the first wireless communication device to transmit the uWUS over a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz.
[00288] Example 9 includes the subject matter of any one of Examples 1-8, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology.
[00289] Example 10 includes the subject matter of any one of Examples 1-9, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
[00290] Example 11 includes the subject matter of any one of Examples 1-10, and optionally, wherein the DSSS radio comprises a Zigbee radio.
[00291] Example 12 includes the subject matter of any one of Examples 1-11, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration.
[00292] Example 13 includes the subject matter of any one of Examples 1-12, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds. [00293] Example 14 includes the subject matter of any one of Examples 1-13, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
[00294] Example 15 includes the subject matter of any one of Examples 1-14, and optionally, comprising a memory and a processor. [00295] Example 16 includes the subject matter of any one of Examples 1-15, and optionally, comprising one or more antennas. [00296] Example 17 includes a system of wireless communication comprising a first wireless communication device, the first wireless communication device comprising one or more antennas; a radio; a memory; a processor; and a controller configured to cause the first wireless communication device to generate a wakeup packet comprising at least a radio type field and an address field, the radio type field to identify a radio type of a radio of a second wireless communication device to be woken up, the address field comprising an address of the radio of the second wireless communication device, the radio type field to identify an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio; and transmit by the radio of the first wireless communication device a Unified Wakeup Signal (uWUS) by modulating payload values of the wakeup packet according to a unified On-Off keying (OOK) modulation scheme comprising modulating a payload value by selecting, based on the payload value, whether or not to transmit an OOK transmit pulse during a unified OOK symbol period having a predefined duration, the OOK transmit pulse is based on a radio type of the radio of the first wireless communication device.
[00297] Example 18 includes the subject matter of Example 17, and optionally, wherein the radio of the first wireless communication device comprises the OFDM radio, the OOK transmit pulse comprises an OFDM signal over a plurality of OFDM tones of an OFDM symbol.
[00298] Example 19 includes the subject matter of Example 18, and optionally, wherein the controller is configured to cause the radio of the first wireless communication device to transmit the uWUS over an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz. [00299] Example 20 includes the subject matter of Example 18 or 19, and optionally, wherein the controller is configured to cause the radio of the first wireless communication device to transmit a preamble prior to the uWUS, the preamble modulated according to an OFDM modulation scheme.
[00300] Example 21 includes the subject matter of Example 17, and optionally, wherein the radio of the first wireless communication device comprises the BT radio, the OOK transmit pulse comprises a BT signal over four Gaussian Frequency Shift Keying (GFSK) symbols. [00301] Example 22 includes the subject matter of Example 21, and optionally, wherein the controller is configured to cause the radio of the first wireless communication device to transmit the uWUS over a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz. [00302] Example 23 includes the subject matter of Example 17, and optionally, wherein the radio of the first wireless communication device comprises a DSSS radio, the OOK transmit pulse comprises a DSSS signal over 1/4 of an Offset Quadrature Phase Shift Keying (O-QPSK) symbol.
[00303] Example 24 includes the subject matter of Example 23, and optionally, wherein the controller is configured to cause the radio of the first wireless communication device to transmit the uWUS over a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz.
[00304] Example 25 includes the subject matter of any one of Examples 17-24, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology.
[00305] Example 26 includes the subject matter of any one of Examples 17-25, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
[00306] Example 27 includes the subject matter of any one of Examples 17-26, and optionally, wherein the DSSS radio comprises a Zigbee radio.
[00307] Example 28 includes the subject matter of any one of Examples 17-27, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration.
[00308] Example 29 includes the subject matter of any one of Examples 17-28, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds.
[00309] Example 30 includes the subject matter of any one of Examples 17-29, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field. [00310] Example 31 includes a method to be performed at a first wireless communication device, the method comprising generating a wakeup packet comprising at least a radio type field and an address field, the radio type field to identify a radio type of a radio of a second wireless communication device to be woken up, the address field comprising an address of the radio of the second wireless communication device, the radio type field to identify an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio; and transmitting by a radio of the first wireless communication device a Unified Wakeup Signal (uWUS) by modulating payload values of the wakeup packet according to a unified On-Off keying (OOK) modulation scheme comprising modulating a payload value by selecting, based on the payload value, whether or not to transmit an OOK transmit pulse during a unified OOK symbol period having a predefined duration, the OOK transmit pulse is based on a radio type of the radio of the first wireless communication device.
[00311] Example 32 includes the subject matter of Example 31, and optionally, wherein the radio of the first wireless communication device comprises the OFDM radio, the OOK transmit pulse comprises an OFDM signal over a plurality of OFDM tones of an OFDM symbol.
[00312] Example 33 includes the subject matter of Example 32, and optionally, comprising transmitting the uWUS over an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz. [00313] Example 34 includes the subject matter of Example 32 or 33, and optionally, comprising transmitting a preamble prior to the uWUS, the preamble modulated according to an OFDM modulation scheme.
[00314] Example 35 includes the subject matter of Example 31, and optionally, wherein the radio of the first wireless communication device comprises the BT radio, the OOK transmit pulse comprises a BT signal over four Gaussian Frequency Shift Keying (GFSK) symbols.
[00315] Example 36 includes the subject matter of Example 35, and optionally, comprising transmitting the uWUS over a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz. [00316] Example 37 includes the subject matter of Example 31, and optionally, wherein the radio of the first wireless communication device comprises a DSSS radio, the OOK transmit pulse comprises a DSSS signal over 1/4 of an Offset Quadrature Phase Shift Keying (O-QPSK) symbol.
[00317] Example 38 includes the subject matter of Example 37, and optionally, comprising transmitting the uWUS over a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz.
[00318] Example 39 includes the subject matter of any one of Examples 31-38, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology.
[00319] Example 40 includes the subject matter of any one of Examples 31-39, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
[00320] Example 41 includes the subject matter of any one of Examples 31-40, and optionally, wherein the DSSS radio comprises a Zigbee radio.
[00321] Example 42 includes the subject matter of any one of Examples 31-41, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration.
[00322] Example 43 includes the subject matter of any one of Examples 31-42, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds. [00323] Example 44 includes the subject matter of any one of Examples 31-43, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
[00324] Example 45 includes a product comprising one or more tangible computer- readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a first wireless communication device to generate a wakeup packet comprising at least a radio type field and an address field, the radio type field to identify a radio type of a radio of a second wireless communication device to be woken up, the address field comprising an address of the radio of the second wireless communication device, the radio type field to identify an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio; and transmit by a radio of the first wireless communication device a Unified Wakeup Signal (uWUS) by modulating payload values of the wakeup packet according to a unified On-Off keying (OOK) modulation scheme comprising modulating a payload value by selecting, based on the payload value, whether or not to transmit an OOK transmit pulse during a unified OOK symbol period having a predefined duration, the OOK transmit pulse is based on a radio type of the radio of the first wireless communication device.
[00325] Example 46 includes the subject matter of Example 45, and optionally, wherein the radio of the first wireless communication device comprises the OFDM radio, the OOK transmit pulse comprises an OFDM signal over a plurality of OFDM tones of an OFDM symbol.
[00326] Example 47 includes the subject matter of Example 46, and optionally, wherein the instructions, when executed, cause the radio of the first wireless communication device to transmit the uWUS over an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz.
[00327] Example 48 includes the subject matter of Example 46 or 47, and optionally, wherein the instructions, when executed, cause the radio of the first wireless communication device to transmit a preamble prior to the uWUS, the preamble modulated according to an OFDM modulation scheme. [00328] Example 49 includes the subject matter of Example 45, and optionally, wherein the radio of the first wireless communication device comprises the BT radio, the OOK transmit pulse comprises a BT signal over four Gaussian Frequency Shift Keying (GFSK) symbols.
[00329] Example 50 includes the subject matter of Example 49, and optionally, wherein the instructions, when executed, cause the radio of the first wireless communication device to transmit the uWUS over a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz.
[00330] Example 51 includes the subject matter of Example 45, and optionally, wherein the radio of the first wireless communication device comprises a DSSS radio, the OOK transmit pulse comprises a DSSS signal over 1/4 of an Offset Quadrature Phase Shift Keying (O-QPSK) symbol. [00331] Example 52 includes the subject matter of Example 51, and optionally, wherein the instructions, when executed, cause the radio of the first wireless communication device to transmit the uWUS over a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz. [00332] Example 53 includes the subject matter of any one of Examples 45-52, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology.
[00333] Example 54 includes the subject matter of any one of Examples 45-53, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
[00334] Example 55 includes the subject matter of any one of Examples 45-54, and optionally, wherein the DSSS radio comprises a Zigbee radio.
[00335] Example 56 includes the subject matter of any one of Examples 45-55, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration.
[00336] Example 57 includes the subject matter of any one of Examples 45-56, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds.
[00337] Example 58 includes the subject matter of any one of Examples 45-57, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
[00338] Example 59 includes an apparatus of wireless communication by a first wireless communication device, the apparatus comprising means for generating a wakeup packet comprising at least a radio type field and an address field, the radio type field to identify a radio type of a radio of a second wireless communication device to be woken up, the address field comprising an address of the radio of the second wireless communication device, the radio type field to identify an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio; and means for transmitting by a radio of the first wireless communication device a Unified Wakeup Signal (uWUS) by modulating payload values of the wakeup packet according to a unified On-Off keying (OOK) modulation scheme comprising modulating a payload value by selecting, based on the payload value, whether or not to transmit an OOK transmit pulse during a unified OOK symbol period having a predefined duration, the OOK transmit pulse is based on a radio type of the radio of the first wireless communication device.
[00339] Example 60 includes the subject matter of Example 59, and optionally, wherein the radio of the first wireless communication device comprises the OFDM radio, the OOK transmit pulse comprises an OFDM signal over a plurality of OFDM tones of an OFDM symbol.
[00340] Example 61 includes the subject matter of Example 60, and optionally, comprising means for transmitting the uWUS over an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz.
[00341] Example 62 includes the subject matter of Example 60 or 61, and optionally, comprising means for transmitting a preamble prior to the uWUS, the preamble modulated according to an OFDM modulation scheme.
[00342] Example 63 includes the subject matter of Example 59, and optionally, wherein the radio of the first wireless communication device comprises the BT radio, the OOK transmit pulse comprises a BT signal over four Gaussian Frequency Shift Keying (GFSK) symbols.
[00343] Example 64 includes the subject matter of Example 63, and optionally, comprising means for transmitting the uWUS over a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz.
[00344] Example 65 includes the subject matter of Example 59, and optionally, wherein the radio of the first wireless communication device comprises a DSSS radio, the OOK transmit pulse comprises a DSSS signal over 1/4 of an Offset Quadrature Phase Shift Keying (O-QPSK) symbol. [00345] Example 66 includes the subject matter of Example 65, and optionally, comprising means for transmitting the uWUS over a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz.
[00346] Example 67 includes the subject matter of any one of Examples 59-66, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology. [00347] Example 68 includes the subject matter of any one of Examples 59-67, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
[00348] Example 69 includes the subject matter of any one of Examples 59-68, and optionally, wherein the DSSS radio comprises a Zigbee radio.
[00349] Example 70 includes the subject matter of any one of Examples 59-69, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration.
[00350] Example 71 includes the subject matter of any one of Examples 59-70, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds.
[00351] Example 72 includes the subject matter of any one of Examples 59-71, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field. [00352] Example 73 includes an apparatus comprising logic and circuitry configured to cause a first wireless communication device to monitor, at a wakeup receiver of the first wireless communication device, a wireless communication channel to detect a Unified Wakeup Signal (uWUS) from a radio of a second wireless communication device; determine payload values of a wakeup packet by demodulating the uWUS according to a unified On-Off keying (OOK) modulation scheme, demodulating the uWUS comprises determining an OOK on-state of a payload value when an OOK transmit pulse is detected during a unified OOK symbol period having a predefined duration, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the unified OOK symbol period; and wake up a radio of the first wireless communication device based at least on a radio type field and an address field in the wakeup packet, the radio type field to identify a radio type of a radio to be woken up, the address field comprising an address of the radio to be woken up, the radio type comprising an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio.
[00353] Example 74 includes the subject matter of Example 73, and optionally, wherein the apparatus is configured to cause the first wireless communication device to wake up the radio of the first wireless communication device, when a radio type of the radio of the first wireless communication device corresponds to the radio type identified by the radio type field, and an address of the radio of the first wireless communication device corresponds to the address in the address filed. [00354] Example 75 includes the subject matter of Example 73 or 74, and optionally, wherein the apparatus is configured to cause the first wireless communication device to select the radio of the first wireless communication device to be woken up from a plurality of radios of the first wireless communication device, based on the radio type field and the address field. [00355] Example 76 includes the subject matter of any one of Examples 73-75, and optionally, wherein the wireless communication channel comprises an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz.
[00356] Example 77 includes the subject matter of any one of Examples 73-76, and optionally, wherein the wireless communication channel covers at least a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz.
[00357] Example 78 includes the subject matter of any one of Examples 73-77, and optionally, wherein the wireless communication channel covers at least a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz.
[00358] Example 79 includes the subject matter of any one of Examples 73-78, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology.
[00359] Example 80 includes the subject matter of any one of Examples 73-79, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
[00360] Example 81 includes the subject matter of any one of Examples 73-80, and optionally, wherein the DSSS radio comprises a Zigbee radio.
[00361] Example 82 includes the subject matter of any one of Examples 73-81, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration. [00362] Example 83 includes the subject matter of any one of Examples 73-82, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds.
[00363] Example 84 includes the subject matter of any one of Examples 73-83, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
[00364] Example 85 includes the subject matter of any one of Examples 73-84, and optionally, comprising a memory and a processor.
[00365] Example 86 includes the subject matter of any one of Examples 73-85, and optionally, comprising one or more antennas.
[00366] Example 87 includes a system of wireless communication comprising a first wireless communication device, the first wireless communication device comprising one or more antennas; a radio; a memory; a processor; and a controller configured to cause the first wireless communication device to monitor, at a wakeup receiver of the first wireless communication device, a wireless communication channel to detect a Unified Wakeup Signal (uWUS) from a radio of a second wireless communication device; determine payload values of a wakeup packet by demodulating the uWUS according to a unified On-Off keying (OOK) modulation scheme, demodulating the uWUS comprises determining an OOK on-state of a payload value when an OOK transmit pulse is detected during a unified OOK symbol period having a predefined duration, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the unified OOK symbol period; and wake up the radio of the first wireless communication device based at least on a radio type field and an address field in the wakeup packet, the radio type field to identify a radio type of a radio to be woken up, the address field comprising an address of the radio to be woken up, the radio type comprising an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio.
[00367] Example 88 includes the subject matter of Example 87, and optionally, wherein the controller is configured to cause the first wireless communication device to wake up the radio of the first wireless communication device, when a radio type of the radio of the first wireless communication device corresponds to the radio type identified by the radio type field, and an address of the radio of the first wireless communication device corresponds to the address in the address filed.
[00368] Example 89 includes the subject matter of Example 87 or 88, and optionally, wherein the controller is configured to cause the first wireless communication device to select the radio of the first wireless communication device to be woken up from a plurality of radios of the first wireless communication device, based on the radio type field and the address field.
[00369] Example 90 includes the subject matter of any one of Examples 87-89, and optionally, wherein the wireless communication channel comprises an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz.
[00370] Example 91 includes the subject matter of any one of Examples 87-90, and optionally, wherein the wireless communication channel covers at least a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz. [00371] Example 92 includes the subject matter of any one of Examples 87-91, and optionally, wherein the wireless communication channel covers at least a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz.
[00372] Example 93 includes the subject matter of any one of Examples 87-92, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology.
[00373] Example 94 includes the subject matter of any one of Examples 87-93, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology. [00374] Example 95 includes the subject matter of any one of Examples 87-94, and optionally, wherein the DSSS radio comprises a Zigbee radio.
[00375] Example 96 includes the subject matter of any one of Examples 87-95, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration. [00376] Example 97 includes the subject matter of any one of Examples 87-96, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds.
[00377] Example 98 includes the subject matter of any one of Examples 87-97, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
[00378] Example 99 includes a method to be performed at a first wireless communication device, the method comprising monitoring, at a wakeup receiver of the first wireless communication device, a wireless communication channel to detect a Unified Wakeup Signal (uWUS) from a radio of a second wireless communication device; determining payload values of a wakeup packet by demodulating the uWUS according to a unified On-Off keying (OOK) modulation scheme, demodulating the uWUS comprises determining an OOK on-state of a payload value when an OOK transmit pulse is detected during a unified OOK symbol period having a predefined duration, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the unified OOK symbol period; and waking up a radio of the first wireless communication device based at least on a radio type field and an address field in the wakeup packet, the radio type field to identify a radio type of a radio to be woken up, the address field comprising an address of the radio to be woken up, the radio type comprising an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio.
[00379] Example 100 includes the subject matter of Example 99, and optionally, comprising waking up the radio of the first wireless communication device, when a radio type of the radio of the first wireless communication device corresponds to the radio type identified by the radio type field, and an address of the radio of the first wireless communication device corresponds to the address in the address filed.
[00380] Example 101 includes the subject matter of Example 99 or 100, and optionally, comprising selecting the radio of the first wireless communication device to be woken up from a plurality of radios of the first wireless communication device, based on the radio type field and the address field. [00381] Example 102 includes the subject matter of any one of Examples 99-101, and optionally, wherein the wireless communication channel comprises an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz. [00382] Example 103 includes the subject matter of any one of Examples 99-102, and optionally, wherein the wireless communication channel covers at least a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz.
[00383] Example 104 includes the subject matter of any one of Examples 99-103, and optionally, wherein the wireless communication channel covers at least a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz.
[00384] Example 105 includes the subject matter of any one of Examples 99-104, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology. [00385] Example 106 includes the subject matter of any one of Examples 99-105, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
[00386] Example 107 includes the subject matter of any one of Examples 99-106, and optionally, wherein the DSSS radio comprises a Zigbee radio. [00387] Example 108 includes the subject matter of any one of Examples 99-107, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration.
[00388] Example 109 includes the subject matter of any one of Examples 99-108, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds.
[00389] Example 110 includes the subject matter of any one of Examples 99-109, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
[00390] Example 111 includes a product comprising one or more tangible computer- readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a first wireless communication device to monitor, at a wakeup receiver of the first wireless communication device, a wireless communication channel to detect a Unified Wakeup Signal (uWUS) from a radio of a second wireless communication device; determine payload values of a wakeup packet by demodulating the uWUS according to a unified On-Off keying (OOK) modulation scheme, demodulating the uWUS comprises determining an OOK on-state of a payload value when an OOK transmit pulse is detected during a unified OOK symbol period having a predefined duration, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the unified OOK symbol period; and wake up a radio of the first wireless communication device based at least on a radio type field and an address field in the wakeup packet, the radio type field to identify a radio type of a radio to be woken up, the address field comprising an address of the radio to be woken up, the radio type comprising an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio.
[00391] Example 112 includes the subject matter of Example 111, and optionally, wherein the instructions, when executed, cause the first wireless communication device to wake up the radio of the first wireless communication device, when a radio type of the radio of the first wireless communication device corresponds to the radio type identified by the radio type field, and an address of the radio of the first wireless communication device corresponds to the address in the address filed.
[00392] Example 113 includes the subject matter of Example 111 or 112, and optionally, wherein the instructions, when executed, cause the first wireless communication device to select the radio of the first wireless communication device to be woken up from a plurality of radios of the first wireless communication device, based on the radio type field and the address field.
[00393] Example 114 includes the subject matter of any one of Examples 111-113, and optionally, wherein the wireless communication channel comprises an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz.
[00394] Example 115 includes the subject matter of any one of Examples 111-114, and optionally, wherein the wireless communication channel covers at least a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz.
[00395] Example 116 includes the subject matter of any one of Examples 111-115, and optionally, wherein the wireless communication channel covers at least a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz.
[00396] Example 117 includes the subject matter of any one of Examples 111-116, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology. [00397] Example 118 includes the subject matter of any one of Examples 111-117, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
[00398] Example 119 includes the subject matter of any one of Examples 111-118, and optionally, wherein the DSSS radio comprises a Zigbee radio.
[00399] Example 120 includes the subject matter of any one of Examples 111-119, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration.
[00400] Example 121 includes the subject matter of any one of Examples 111-120, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds.
[00401] Example 122 includes the subject matter of any one of Examples 111-121, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field. [00402] Example 123 includes an apparatus of wireless communication by a first wireless communication device, the apparatus comprising means for monitoring, at a wakeup receiver of the first wireless communication device, a wireless communication channel to detect a Unified Wakeup Signal (uWUS) from a radio of a second wireless communication device; means for determining payload values of a wakeup packet by demodulating the uWUS according to a unified On-Off keying (OOK) modulation scheme, demodulating the uWUS comprises determining an OOK on-state of a payload value when an OOK transmit pulse is detected during a unified OOK symbol period having a predefined duration, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the unified OOK symbol period; and means for waking up a radio of the first wireless communication device based at least on a radio type field and an address field in the wakeup packet, the radio type field to identify a radio type of a radio to be woken up, the address field comprising an address of the radio to be woken up, the radio type comprising an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio. [00403] Example 124 includes the subject matter of Example 123, and optionally, comprising means for waking up the radio of the first wireless communication device, when a radio type of the radio of the first wireless communication device corresponds to the radio type identified by the radio type field, and an address of the radio of the first wireless communication device corresponds to the address in the address filed. [00404] Example 125 includes the subject matter of Example 123 or 124, and optionally, comprising means for selecting the radio of the first wireless communication device to be woken up from a plurality of radios of the first wireless communication device, based on the radio type field and the address field.
[00405] Example 126 includes the subject matter of any one of Examples 123-125, and optionally, wherein the wireless communication channel comprises an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz.
[00406] Example 127 includes the subject matter of any one of Examples 123-126, and optionally, wherein the wireless communication channel covers at least a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz.
[00407] Example 128 includes the subject matter of any one of Examples 123-127, and optionally, wherein the wireless communication channel covers at least a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz. [00408] Example 129 includes the subject matter of any one of Examples 123-128, and optionally, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology.
[00409] Example 130 includes the subject matter of any one of Examples 123-129, and optionally, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
[00410] Example 131 includes the subject matter of any one of Examples 123-130, and optionally, wherein the DSSS radio comprises a Zigbee radio. [00411] Example 132 includes the subject matter of any one of Examples 123-131, and optionally, wherein the predefined duration comprises at least one OFDM symbol duration.
[00412] Example 133 includes the subject matter of any one of Examples 123-132, and optionally, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds.
[00413] Example 134 includes the subject matter of any one of Examples 123-133, and optionally, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
[00414] Functions, operations, components and/or features described herein with reference to one or more embodiments, may be combined with, or may be utilized in combination with, one or more other functions, operations, components and/or features described herein with reference to one or more other embodiments, or vice versa.
[00415] While certain features have been illustrated and described herein, many modifications, substitutions, changes, and equivalents may occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the disclosure.

Claims

CLAIMS What is claimed is:
1. An apparatus comprising logic and circuitry configured to cause a first wireless communication device to:
generate a wakeup packet comprising at least a radio type field and an address field, the radio type field to identify a radio type of a radio of a second wireless communication device to be woken up, the address field comprising an address of the radio of the second wireless communication device, the radio type field to identify an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio; and
transmit by a radio of the first wireless communication device a Unified Wakeup Signal (uWUS) by modulating payload values of the wakeup packet according to a unified On-Off keying (OOK) modulation scheme comprising modulating a payload value by selecting, based on the payload value, whether or not to transmit an OOK transmit pulse during a unified OOK symbol period having a predefined duration, the OOK transmit pulse is based on a radio type of the radio of the first wireless communication device.
2. The apparatus of claim 1, wherein the radio of the first wireless communication device comprises the OFDM radio, the OOK transmit pulse comprises an OFDM signal over a plurality of OFDM tones of an OFDM symbol.
3. The apparatus of claim 2 configured to cause the radio of the first wireless communication device to transmit the uWUS over an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz.
4. The apparatus of claim 2 configured to cause the radio of the first wireless communication device to transmit a preamble prior to the uWUS, the preamble modulated according to an OFDM modulation scheme.
5. The apparatus of claim 1, wherein the radio of the first wireless communication device comprises the BT radio, the OOK transmit pulse comprises a BT signal over four Gaussian Frequency Shift Keying (GFSK) symbols.
6. The apparatus of claim 5 configured to cause the radio of the first wireless communication device to transmit the uWUS over a BT channel having a central frequency of 2.412 Gigahertz (GHz), 2.436GHz, or 2.462GHz.
7. The apparatus of claim 1, wherein the radio of the first wireless communication device comprises a DSSS radio, the OOK transmit pulse comprises a
DSSS signal over 1/4 of an Offset Quadrature Phase Shift Keying (O-QPSK) symbol.
8. The apparatus of claim 7 configured to cause the radio of the first wireless communication device to transmit the uWUS over a DSSS channel having a central frequency of 2.410 Gigahertz (GHz), 2.435GHz, or 2.460GHz.
9. The apparatus of any one of claims 1-8, wherein the OOK transmit pulse is detectable according to an OFDM technology, a DSSS technology, and a BT technology.
10. The apparatus of any one of claims 1-8, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
11. The apparatus of any one of claims 1-8, wherein the DSSS radio comprises a Zigbee radio.
12. The apparatus of any one of claims 1-8, wherein the predefined duration comprises at least one OFDM symbol duration.
13. The apparatus of any one of claims 1-8, wherein the predefined duration comprises a duration of 4 microseconds or an integer multiple of 4 microseconds.
14. The apparatus of any one of claims 1-8, wherein the wakeup packet comprises a Media Access Control (MAC) header comprising the radio type field and the address field.
15. The apparatus of any one of claims 1-8 comprising one or more antennas.
16. A method to be performed at a first wireless communication device, the method comprising: generating a wakeup packet comprising at least a radio type field and an address field, the radio type field to identify a radio type of a radio of a second wireless communication device to be woken up, the address field comprising an address of the radio of the second wireless communication device, the radio type field to identify an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio; and
transmitting by a radio of the first wireless communication device a Unified Wakeup Signal (uWUS) by modulating payload values of the wakeup packet according to a unified On-Off keying (OOK) modulation scheme comprising modulating a payload value by selecting, based on the payload value, whether or not to transmit an OOK transmit pulse during a unified OOK symbol period having a predefined duration, the OOK transmit pulse is based on a radio type of the radio of the first wireless communication device.
17. The method of claim 16, wherein the unified OOK symbol period is common to transmission of the uWUS according to an OFDM technology, a DSSS technology, and a BT technology.
18. A product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a first wireless communication device to perform the method of claim 16 or 17.
19. An apparatus comprising logic and circuitry configured to cause a first wireless communication device to:
monitor, at a wakeup receiver of the first wireless communication device, a wireless communication channel to detect a Unified Wakeup Signal (uWUS) from a radio of a second wireless communication device;
determine payload values of a wakeup packet by demodulating the uWUS according to a unified On-Off keying (OOK) modulation scheme, demodulating the uWUS comprises determining an OOK on-state of a payload value when an OOK transmit pulse is detected during a unified OOK symbol period having a predefined duration, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the unified OOK symbol period; and wake up a radio of the first wireless communication device based at least on a radio type field and an address field in the wakeup packet, the radio type field to identify a radio type of a radio to be woken up, the address field comprising an address of the radio to be woken up, the radio type comprising an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio.
20. The apparatus of claim 19 configured to cause the first wireless communication device to wake up the radio of the first wireless communication device, when a radio type of the radio of the first wireless communication device corresponds to the radio type identified by the radio type field, and an address of the radio of the first wireless communication device corresponds to the address in the address filed.
21. The apparatus of claim 19 configured to cause the first wireless communication device to select the radio of the first wireless communication device to be woken up from a plurality of radios of the first wireless communication device, based on the radio type field and the address field.
22. The apparatus of claim 19, wherein the wireless communication channel comprises an OFDM channel having a central frequency of 2.412 Gigahertz (GHz), 2.437GHz, or 2.462GHz.
23. The apparatus of any one of claims 19-22 comprising one or more antennas.
24. A product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a first wireless communication device to:
monitor, at a wakeup receiver of the first wireless communication device, a wireless communication channel to detect a Unified Wakeup Signal (uWUS) from a radio of a second wireless communication device;
determine payload values of a wakeup packet by demodulating the uWUS according to a unified On-Off keying (OOK) modulation scheme, demodulating the uWUS comprises determining an OOK on-state of a payload value when an OOK transmit pulse is detected during a unified OOK symbol period having a predefined duration, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the unified OOK symbol period; and
wake up a radio of the first wireless communication device based at least on a radio type field and an address field in the wakeup packet, the radio type field to identify a radio type of a radio to be woken up, the address field comprising an address of the radio to be woken up, the radio type comprising an Orthogonal Frequency Division Multiplexing (OFDM) radio, a Direct- Sequence Spread Spectrum (DSSS) radio, or a Bluetooth (BT) radio.
25. The product of claim 24, wherein the instructions, when executed, cause the first wireless communication device to wake up the radio of the first wireless communication device, when a radio type of the radio of the first wireless communication device corresponds to the radio type identified by the radio type field, and an address of the radio of the first wireless communication device corresponds to the address in the address filed.
PCT/US2017/053939 2017-09-28 2017-09-28 Apparatus, system and method of communicating a unified wakeup signal WO2019066846A1 (en)

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